Prosecution Insights
Last updated: April 17, 2026
Application No. 18/426,129

Apparatus and Methods for Underground Structures and Construction Thereof

Final Rejection §103§DP
Filed
Jan 29, 2024
Examiner
LAGMAN, FREDERICK LYNDON
Art Unit
3678
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
unknown
OA Round
2 (Final)
83%
Grant Probability
Favorable
3-4
OA Rounds
2y 1m
To Grant
94%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
1334 granted / 1610 resolved
+30.9% vs TC avg
Moderate +11% lift
Without
With
+11.2%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
38 currently pending
Career history
1648
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
32.9%
-7.1% vs TC avg
§102
33.7%
-6.3% vs TC avg
§112
19.0%
-21.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1610 resolved cases

Office Action

§103 §DP
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application is being examined under the pre-AIA first to invent provisions. Double Patenting The nonstatutory double patenting rejection is based on a judicially created doctrine grounded in public policy (a policy reflected in the statute) so as to prevent the unjustified or improper timewise extension of the “right to exclude” granted by a patent and to prevent possible harassment by multiple assignees. A nonstatutory double patenting rejection is appropriate where the conflicting claims are not identical, but at least one examined application claim is not patentably distinct from the reference claim(s) because the examined application claim is either anticipated by, or would have been obvious over, the reference claim(s). See, e.g., In re Berg, 140 F.3d 1428, 46 USPQ2d 1226 (Fed. Cir. 1998); In re Goodman, 11 F.3d 1046, 29 USPQ2d 2010 (Fed. Cir. 1993); In re Longi, 759 F.2d 887, 225 USPQ 645 (Fed. Cir. 1985); In re Van Ornum, 686 F.2d 937, 214 USPQ 761 (CCPA 1982); In re Vogel, 422 F.2d 438, 164 USPQ 619 (CCPA 1970); In re Thorington, 418 F.2d 528, 163 USPQ 644 (CCPA 1969). A timely filed terminal disclaimer in compliance with 37 CFR 1.321(c) or 1.321(d) may be used to overcome an actual or provisional rejection based on nonstatutory double patenting provided the reference application or patent either is shown to be commonly owned with the examined application, or claims an invention made as a result of activities undertaken within the scope of a joint research agreement. See MPEP § 717.02 for applications subject to examination under the first inventor to file provisions of the AIA as explained in MPEP § 2159. See MPEP §§ 706.02(l)(1) - 706.02(l)(3) for applications not subject to examination under the first inventor to file provisions of the AIA . A terminal disclaimer must be signed in compliance with 37 CFR 1.321(b). The USPTO Internet website contains terminal disclaimer forms which may be used. Please visit www.uspto.gov/patent/patents-forms. The filing date of the application in which the form is filed determines what form (e.g., PTO/SB/25, PTO/SB/26, PTO/AIA /25, or PTO/AIA /26) should be used. A web-based eTerminal Disclaimer may be filled out completely online using web-screens. An eTerminal Disclaimer that meets all requirements is auto-processed and approved immediately upon submission. For more information about eTerminal Disclaimers, refer to www.uspto.gov/patents/process/file/efs/guidance/eTD-info-I.jsp. Claims 21-40 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-21 of U.S. Patent No. 10,815,633. Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are fully encompassed by those of U.S. Patent No. 10,815,633. For example, the horizontal rings and vertical tensioning cables are similarly recited. Claims 21-40 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-18 of U.S. Patent No. 10,017,910. Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are fully encompassed by those of U.S. Patent No. 10,017,910. For example, the horizontal rings and vertical tensioning cables are similarly recited. Claims 21-40 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-24 of U.S. Patent No. 8,714,877. Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are fully encompassed by those of U.S. Patent No. 8,714,877. For example, the horizontal rings and vertical tensioning cables are similarly recited. Claims 21-40 are rejected on the ground of nonstatutory double patenting as being unpatentable over claims 1-19 of U.S. Patent No. 8,322,949. Although the claims at issue are not identical, they are not patentably distinct from each other because the instant claims are fully encompassed by those of U.S. Patent No. 8,322,949. For example, the horizontal rings and vertical tensioning cables are similarly recited. Claim Rejections - 35 USC § 103 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 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. The following is a quotation of pre-AIA 35 U.S.C. 103(a) which forms the basis for all obviousness rejections set forth in this Office action: (a) A patent may not be obtained though the invention is not identically disclosed or described as set forth in section 102, if the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains. Patentability shall not be negatived by the manner in which the invention was made. Claims 21-26 and 40 are rejected under pre-AIA 35 U.S.C. 103(a) as being unpatentable over Larson et al (US 5,131,201) in view of Morrison et al (US 2004/0134144). As to claim 21, Larson et al discloses a system for creating a structure comprising: a plurality of segments 2 used to fabricate a horizontal ring, wherein the plurality of segments 2 and one or more of the horizontal rings are stacked vertically within an area of excavated earth. Larson et al does not disclose the vertical post-tensioning member being a cable. Morrison et al discloses (pg. 3, para [0043]) that tendons may be used as tensioning members. It would have been obvious to one of ordinary skill in the art to provide a cable as a post-tensioning member as disclosed by Morrison et al, since doing so would facilitate reinforcement of a structure by providing post-tensioning tendons such as cables. As to claim 22-24 and 40, Larson discloses the use of material such as grout to occupy space between stacked rings to prevent moisture from entering the structure (see col. 4, lines 55-58). Furthermore, the grout may be applied at any pressure including high pressure. As to claim 25, Larson discloses wherein the plurality of segments 2 includes two or more segments 2. As to claim 26, Larson discloses wherein each of the two or more segments 2 includes a body comprising a top horizontal face, a bottom horizontal face, a left face, and a right face. Response to Arguments Applicant’s arguments, see amendment, filed 12/11/25, with respect to the rejection(s) of the claim(s) have been fully considered and are persuasive. Therefore, the rejection has been withdrawn. However, upon further consideration, a new ground(s) of rejection is made as stated above. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to FREDERICK L LAGMAN whose telephone number is (571)272-7043. The examiner can normally be reached Tuesday-Friday 8am-6:00pm. 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, Amber Anderson can be reached at 571-270-5281. 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. /FREDERICK L LAGMAN/Primary Examiner, Art Unit 3678
Read full office action

Prosecution Timeline

Jan 29, 2024
Application Filed
Jun 09, 2025
Non-Final Rejection — §103, §DP
Dec 11, 2025
Response Filed
Mar 18, 2026
Final Rejection — §103, §DP (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
83%
Grant Probability
94%
With Interview (+11.2%)
2y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 1610 resolved cases by this examiner. Grant probability derived from career allow rate.

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