Prosecution Insights
Last updated: April 19, 2026
Application No. 17/347,490

LIGHTWEIGHT VAULT COVER

Non-Final OA §103
Filed
Jun 14, 2021
Examiner
CHU, KATHERINE J
Art Unit
3671
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Hubbell Incorporated
OA Round
3 (Non-Final)
46%
Grant Probability
Moderate
3-4
OA Rounds
2y 7m
To Grant
67%
With Interview

Examiner Intelligence

Grants 46% of resolved cases
46%
Career Allow Rate
236 granted / 507 resolved
-5.5% vs TC avg
Strong +20% interview lift
Without
With
+20.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
38 currently pending
Career history
545
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
54.2%
+14.2% vs TC avg
§102
18.6%
-21.4% vs TC avg
§112
24.1%
-15.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 507 resolved cases

Office Action

§103
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 13, 19-20, 22-23, 35, and 40-43 are rejected under 35 U.S.C. 103 as being unpatentable over Santiso, III et al., US 5,034,256 in view of Newton, US 4,662,777 and Cowan, US 3,502,171. Regarding claim 13, Santiso teaches a high strength, light-weight molded composite panel and discloses using an open-faced mold which has a mold cavity, placing a single top reinforcement layer (33), there is only one layer of 33, along a bottom surface of the mold cavity, the top reinforcement layer having an outer surface facing the bottom of the mold cavity and an inner surface facing the mold cavity; placing a single edge reinforcement layer (15), there is only one layer of 15, along at least one edge of the mold cavity, such that a first portion of the edge reinforcement layer overlaps a portion of the inner surface of the top reinforcement and second portion of the edge reinforcement extends out of the mold cavity (see the figure; column 2 lines 42-45 and column 4 lines 43-52); adding at least one component of a matrix material (24; foaming adhesive) into the mold cavity so that at least that at least a portion of the edge reinforcement layer and the top reinforcement layer are within the at least one component of matrix material (column 4 lines 8-29; foaming adhesive is used to bond the top reinforcement layer 33 and edge reinforcement layer 15); placing a single bottom reinforcement layer (30), there is only one layer of 30, on top of the at least one component of the matrix material; and folding the second portion of the edge reinforcement layer toward the mold cavity (folded second portion of the edge reinforcement is shown in the figure). While Santiso shows the second portion of the edge reinforcement layer overlapping at least a portion of the inner surface of the bottom reinforcement layer rather than an outer surface of the bottom reinforcement layer, Santiso additionally discloses regarding the upper and lower composite panels 30, 33 that the number of plies and close-out plies 15, 36 and the placement with respect to each other may vary to suit the application (column 3 lines 47-50). Additionally, this appears to be merely a matter of rearranging of parts and is a matter of obviousness. It has been held that rearrangement of parts involves only routine skill in the art. In re Japikse, 181 F.2d 1019, 86 USPQ 70 (CCPA 1950). Since the second portion of the edge reinforcement layer overlaps the bottom reinforcement layer and are bonded together, it does not appear to matter whether the second portion of the edge reinforcement layer contacts the outer surface or the inner surface of the bottom reinforcement layer. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify Santiso to have the second portion of the edge reinforcement layer overlap at least a portion of the outer surface of the bottom reinforcement layer based on design choice and Santiso’s suggestion. While the resulting combination fails to disclose forming a vault cover, Newton teaches a composite vault cover which is formed by molding and discusses the need to provide a lightweight composite cover with structural strength (column 1 lines 20-22). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the method of the resulting combination by forming a high strength, light-weight molded composite panel to be used to form a composite vault cover since it has been held that known work in one field of endeavor may prompt variations of it for use in either the same field or a different one based on design incentives if the variations are predictable to one of ordinary skill in the art. KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398, 415-421, 82 USPQ2d 1385, 1395-97 (2007). While the resulting combination fails to explicitly disclose that any of the layers are wetted, Santiso discloses using foaming adhesive. Cowan teaches a composite mat and discloses that a high temperature resin adhesive (which is a liquid that hardens after curing) is a known alternative to a foam adhesive (column 4 lines 43-45). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to substitute the foaming adhesive of the resulting combination to be a high temperature resin adhesive in view of Cowan’s disclosure that they are known alternatives. The resulting combination yields the limitations in the last clause since the resin adhesive would wet the layers (the orientations of layers as claimed are the result of the method steps from the resulting combination) and form a bond when hardened. Regarding claim 19, the resulting combination includes the limitation since Santiso discloses that one or more of the top reinforcement layer, the bottom reinforcement layer and the edge reinforcement layer are a fiberglass fabric (column 3 lines 31-32 and column 3 line 67 through column 4 line 2). Regarding claim 20, the Examiner took Official Notice in the office action dated 8/1/2024 that a fiberglass fabric comprising a quadraxial fabric is old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the fiberglass fabric of the resulting combination to comprise a quadraxial fabric to be able to lay the fabric down in any direction/orientation and conform to the mold easily. Regarding claims 22-23, the Examiner took Official Notice in the office action dated 8/1/2024 that providing an indicia on an interior surface of a mold cavity to yield an imprint is old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to provide a feature in the form of an indicia on an interior surface of the mold cavity since vault covers imprinted with information (such as vault type or municipality) are old and well-known. Regarding claim 35, the resulting combination from claim 13 includes the limitations claimed; the limitations of a first portion and a second portion of the at least one component of a matrix material are considered to be towards the beginning of the addition of the at least one component of a matrix material and towards the end of the addition of the at least one component of a matrix material, and it is obvious to ensure that the matrix material infiltrates at least the first portion of the edge reinforcement layer and the second portion of the edge reinforcement layer and the bottom reinforcement layer since the matrix material is for bonding to ensure complete bonding of the layers. Additionally, these steps are obvious based on common sense as a way to spread the mixture between the top and bottom to prevent too much in one area and not enough in another area. Regarding claims 40 and 42, the resulting combination includes the limitation since Santiso discloses that each of the top reinforcement layer, the bottom reinforcement layer and the edge reinforcement layer are a fiberglass fabric (fiberglass cloth; column 3 lines 31-32 and column 3 line 67 through column 4 line 2). Regarding claims 41 and 43, the Examiner took Official Notice in the action dated 8/1/2024 that a fiberglass fabric comprising a quadraxial fabric is old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the fiberglass fabric of the resulting combination to comprise a quadraxial fabric to be able to lay the fabric down in any direction/orientation and conform to the mold easily. Claims 14-17 and 36-39 are rejected under 35 U.S.C. 103 as being unpatentable over Santiso in view of Newton and Cowan as applied to claim 13 above, further in view of Doyle, US 3,823,099. Regarding claim 14, the resulting combination includes a thermoset polymer as a first component. While it fails to disclose a filler as a second component, Doyle teaches a thermosetting resin and discloses that it can include a filler such as a reinforcing material and the like (column 9 lines 61-67). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to include a filler as a second component in view of Doyle’s disclosure for reinforcement. Regarding claim 15, since the resulting combination includes a high temperature resin adhesive, the resulting combination includes the thermoset polymer comprising a polymer resin. Regarding claim 16, while the resulting combination fails to disclose one of the claimed resins, the Examiner took Official Notice in the office action dated 4/3/2025 that each of the polymer resins listed are old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to use one or more of an unsaturated polyester resin, a methacrylate, a vinyl ester and an epoxy since they are commonly available. Regarding claim 17, while the resulting combination fails to disclose one of the fillers claimed, the Examiner took Official Notice in the office action dated 4/3/2025 that each of the fillers is old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to have the filler comprise one or more of glass beads, expanded glass beads, limestone aggregate, silica sand, chopped fiberglass fibers, polymer fibers, metallic fibers, fly ash, expanded ceramic spheres, and ceramic particles since they each serve as a reinforcing material and are commonly available. Regarding claim 36, the resulting combination includes a thermoset polymer as a first component. While it fails to disclose a filler as a second component, Doyle teaches a thermosetting resin and discloses that it can include a filler such as a reinforcing material and the like (column 9 lines 61-67). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to include a filler as a second component in view of Doyle’s disclosure for reinforcement. Regarding claim 37, since the resulting combination includes a high temperature resin adhesive, the resulting combination includes the thermoset polymer comprising a polymer resin. Regarding claim 38, while the resulting combination fails to disclose one of the claimed resins, the Examiner took Official Notice in the office action dated 4/3/2025 that each of the polymer resins listed are old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to use one or more of an unsaturated polyester resin, a methacrylate, a vinyl ester and an epoxy since they are commonly available. Regarding claim 39, while the resulting combination fails to disclose one of the fillers claimed, the Examiner took Official Notice in the office action dated 4/3/2025 that each of the fillers is old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to have the filler comprise one or more of glass beads, expanded glass beads, limestone aggregate, silica sand, chopped fiberglass fibers, polymer fibers, metallic fibers, fly ash, expanded ceramic spheres, and ceramic particles since they each serve as a reinforcing material and are commonly available. Claim 18 is rejected under 35 U.S.C. 103 as being unpatentable over Santiso in view of Newton and Cowan as applied to claim 13 above, further in view of Andersen et al., US 10,442,733 B2. Regarding claim 18, while the resulting combination includes the matrix material comprising a foaming material but fails to disclose one or more components of the matrix material comprising a mixture of polymer cement and a filler, Andersen discloses a lightweight composite material that comprises polymer cement, water, and foaming agent, and pouring the mixture into a mold (column 1 lines 46-50). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to have the one or more components of the matrix material comprises a mixture of polymer cement and a filler in view of Andersen’s disclosure if it was desired for the vault cover to have insulating properties. Regarding the steps of adding a first portion of the mixture followed by folding the second portion followed by adding a second portion of the mixture, the limitations of a first portion and a second portion of the mixture with matrix material are considered to be towards the beginning of the addition of the mixture with matrix material and towards the end of the addition of the mixture with matrix material, and it is obvious to ensure that the mixture with matrix material infiltrates at least the top reinforcement layer, the edge reinforcement layer, and the bottom reinforcement layer since the mixture with matrix material is for bonding to ensure complete bonding of the layers. Additionally, these steps are obvious based on common sense as a way to spread the mixture between the top and bottom to prevent too much in one area and not enough in another area. The resulting combination yields the limitations of the claim. Claim 21 is rejected under 35 U.S.C. 103 as being unpatentable over Santiso in view of Newton and Cowan as applied to claim 13 above, further in view of Kluppel et al., US 4,720,244. Regarding claim 21, while the resulting combination fails to disclose the method steps claimed, Kluppel discloses a mold with a port to permit resin to be injected (column 5 lines 17-20). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to include the method step of injecting the resin into the cavity via an inlet port in view of Kluppel’s disclosure as a known way to inject resin. Kluppel further discloses that the mold has a top lid (cover) and another port in an upper mold member to be able to vent air forced from the annular space [which is similar to the cavity] during the injection of the resin (column 5 lines 17-24). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to place a top lid over the mold cavity and apply a negative pressing to the cavity through an outlet port in view of Kluppel’s disclosure to close the mold and to allow air from the cavity to vent. Claim 24 is rejected under 35 U.S.C. 103 as being unpatentable over Santiso in view of Newton and Cowan as applied to claim 13 above, further in view of Nadeau, US 4,930,219. Regarding claim 24, the Examiner took Official Notice in the office action dated 8/1/2024 that vault covers with a curvilinear shape are old and well-known. Applicant failed to challenge the Official Notice in their arguments. Under the guidelines of MPEP 2144.03, to adequately traverse Official Notice, an applicant must specifically point out the supposed errors in the Examiner’s action including stating why the noticed fact is not considered to be common knowledge or well-known in the art. A general allegation that the claims define a patentable invention without any reference to the Examiner’s assertion of Official Notice would be inadequate. Since applicant did not adequately traverse the Examiner’s assertion of Official Notice, the facts are now considered to be admitted prior art (MPEP 2144.03). Applicant’s traversal is considered inadequate because there was no reference to the Examiner’s assertion of Official Notice. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the vault cover of the resulting combination to have a curvilinear shape if desired based on design choice. The resulting combination includes an edge of the vault having a curvilinear shape. While the resulting combination fails to disclose the method steps claimed, Nadeau discloses that it is known to trim off excess fabric and notch in order to allow curved seams to lie flat and smooth, free from puckers and bulges (column 1 lines 35-39). Since the resulting combination includes the edge reinforcement comprising cloth/fabric (Santiso’s column 3 line 26), it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to notch the edge reinforcement which comprises fabric and fit the notched edge reinforcement into the mold cavity to conform to the curvilinear shape in view of Nadeau’s disclosure since notching is a known way to remove excess fabric from curves to prevent puckers and bulges. Claim 25 is rejected under 35 U.S.C. 103 as being unpatentable over Santiso in view of Newton and Cowan as applied to claim 13 above, further in view of Nunnery, US 2018/0163361 A1. Regarding claim 25, while the resulting combination fails to disclose embedding an RFID device in the matrix, Nunnery teaches a composite manhole cover with in-molded components and discloses the inclusion of an RFID (Abstract). It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify the resulting combination to embed an RFID in the matrix material in view of Nunnery’s disclosure to be able to provide information to the municipality or owner of the vault/vault cover. Response to Arguments Applicant’s arguments with respect to claims 13-25 and 35-43 have been considered but are moot because Applicant is arguing the newly added limitations against the previous office action. The rejection above has been amended to address the newly added limitations. Applicant does not provide arguments for the dependent claims, only relying on the arguments to the independent claims. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KATHERINE J CHU whose telephone number is 571-272-7819. The examiner can normally be reached M-F generally 9:30-5:30. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Christopher Sebesta can be reached at 571-272-0547. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /KATHERINE J CHU/Examiner, Art Unit 3671 /CHRISTOPHER J SEBESTA/Supervisory Patent Examiner, Art Unit 3671
Read full office action

Prosecution Timeline

Jun 14, 2021
Application Filed
Jul 26, 2024
Non-Final Rejection — §103
Dec 12, 2024
Response Filed
Mar 27, 2025
Final Rejection — §103
Aug 04, 2025
Response after Non-Final Action
Sep 08, 2025
Request for Continued Examination
Sep 17, 2025
Response after Non-Final Action
Nov 19, 2025
Non-Final Rejection — §103 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
46%
Grant Probability
67%
With Interview (+20.4%)
2y 7m
Median Time to Grant
High
PTA Risk
Based on 507 resolved cases by this examiner. Grant probability derived from career allow rate.

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