Prosecution Insights
Last updated: October 25, 2026
Application No. 19/103,429

SEGMENT SEAL

Non-Final OA §102§103
Filed
Feb 12, 2025
Priority
Aug 23, 2022 — JP 2022-132612 +1 more
Examiner
CUMAR, NATHAN
Art Unit
3675
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Eagleburgmann Japan Co. Ltd.
OA Round
1 (Non-Final)
79%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 79% — above average
79%
Career Allowance Rate
961 granted / 1220 resolved
+26.8% vs TC avg
Moderate +15% lift
Without
With
+14.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
39 currently pending
Career history
1273
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
44.7%
+4.7% vs TC avg
§102
23.5%
-16.5% vs TC avg
§112
27.9%
-12.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1220 resolved cases

Office Action

§102 §103
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 . Claim Rejections - 35 USC § 102 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. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-2, 4, 7-9 is/are rejected under 35 U.S.C. 102 (a) (1) as being anticipated by D1 (JP 2005201314). For claim 1, D1 discloses a segment seal (segment seals 1, 2, 3. Abstract. P3, para. [2]) that is disposed with rotation thereof restricted between a housing (40) and a rotating shaft (50) extending through the housing, and seals a space between the housing and the rotating shaft (seal segments are restricted between the housing 40 and shaft 50 by springs 10, 11.), the segment seal, comprising: a base ring (carbon ring 3,) fitted onto the rotating shaft and comprised by a plurality of segments segmented in a circumferential direction (abstract); and a resin ring (1, 2) disposed side by side in an axial direction with the base ring (3), wherein at least a portion of the base ring (3) is disposed on a high-pressure side in the axial direction of the resin ring (Figure 2), and the resin ring (1,2) has a higher thermal expansion coefficient than the base ring (Thermal expansion of carbon is 0.67, and resin 31. See https://www.americanelements.com>images, and attached sheet.) For claim 2, D1 discloses the segment seal according to claim 1, wherein the resin ring is attached to the base ring (In the assembled state, the resin ring (1,2) is attached to the base ring (3). Figures 1-3.) For claim 4, D1 discloses the segment seal according to claim 2, wherein a position of an outer-diameter-side portion of the resin ring (1, 2) is restricted by the base ring (In use, a position of an outer-diameter-side portion of the resin ring is restricted by the base ring. Outer diameter portion of resin ring toward 11 defines the outer diameter side portion. Figure 2), the resin ring (1,2) has an axial surface including an inner peripheral end portion of the resin ring (Inner diameter portion of resin ring has an axial surface, Figure 2.), and the axial surface of the resin ring (1,2) is parallel to an axial surface of the base ring (3) opposite the axial surface of the resin ring (Figure 2.) For claim 7, D1 discloses the segment seal according to claim 1, wherein the base ring (3) is held in an annular shape by an annular garter spring (11) disposed around outer peripheral surfaces of the segments comprising the base ring (Figure 2.) For claim 8, D1 discloses the segment seal according to claim 1, wherein the segment seal is pressed against an installation surface of the housing (40) by a biasing member (10) for biasing the base ring in the axial direction (Figure 2.) For claim 9, D1 discloses the segment seal according to claim 8, wherein the biasing member is attached to the base ring (Biasing member 10 is attached to the base ring 3 via 2. Figure 2.) 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 (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. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. Claim(s) 3, 5-6, 10-20 is/are rejected under 35 U.S.C. 103 as being unpatentable over D1 (JP 2005201314) in view of D2 (JPH 0178772). For claim 3, D1 discloses the segment seal according to claim 2, but does not disclose wherein the base ring (3) has a protrusion or a depression formed on a side surface of the base ring, and the resin ring (1,2) has an engagement portion that is engaged with the protrusion or the depression. D2 teaches a seal assembly seal rings 3, 3. One seal ring 3 has a protrusion 10 on a side surface, and the other seal ring 3 has depression to receive the protrusion 10 for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, the base ring (3) has a protrusion or a depression formed on a side surface of the base ring, and the resin ring (1,2) has an engagement portion that is engaged with the protrusion or the depression, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 5, D1 discloses the segment seal according to claim 4, but does not disclose wherein the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess. D2 teaches a seal assembly seal rings 3, 3. Seal ring 3 on the right has a recess that is open on an inner diameter side of the other seal ring 3. Seal ring 3 on the left is disposed in the recess of the seal ring 3 on the left via 10, for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 6, D1 discloses the segment seal according to claim 1, wherein the resin ring (1,2) is comprised by a plurality of resin segments segmented in the circumferential direction (P3, para. [2]), and each of the resin segments are fixed to each of the segments comprising the base ring. D2 teaches a seal assembly seal rings 3, 3. One seal ring 3 has a protrusion 10 on a side surface, and the other seal ring 3 has depression to receive the protrusion 10 for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, each of the resin segments are fixed to each of the segments comprising the base ring, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 10, D1 discloses the segment seal according to claim 2, wherein the resin ring (1,2) is comprised by a plurality of resin segments segmented in the circumferential direction (P3, para. [2]), and each of the resin segments are fixed to each of the segments comprising the base ring. D2 teaches a seal assembly seal rings 3, 3. One seal ring 3 has a protrusion 10 on a side surface, and the other seal ring 3 has depression to receive the protrusion 10 for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, each of the resin segments are fixed to each of the segments comprising the base ring, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 11, D1 discloses the segment seal according to claim 10, wherein a position of an outer-diameter-side portion of the resin ring (1, 2) is restricted by the base ring (In use, a position of an outer-diameter-side portion of the resin ring is restricted by the base ring. Outer diameter portion of resin ring toward 11 defines the outer diameter side portion. Figure 2), the resin ring (1,2) has an axial surface including an inner peripheral end portion of the resin ring (Inner diameter portion of resin ring has an axial surface, Figure 2.), and the axial surface of the resin ring (1,2) is parallel to an axial surface of the base ring (3) opposite the axial surface of the resin ring (Figure 2.) For claim 12, D1 discloses the segment seal according to claim 11, but does not disclose wherein the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess. D2 teaches a seal assembly seal rings 3, 3. Seal ring 3 on the right has a recess that is open on an inner diameter side of the other seal ring 3. Seal ring 3 on the left is disposed in the recess of the seal ring 3 on the left via 10, for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 13, D1 discloses the segment seal according to claim 3, wherein the resin ring (1,2) is comprised by a plurality of resin segments segmented in the circumferential direction (P3, para. [2]), and each of the resin segments are fixed to each of the segments comprising the base ring. D2 teaches a seal assembly seal rings 3, 3. One seal ring 3 has a protrusion 10 on a side surface, and the other seal ring 3 has depression to receive the protrusion 10 for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, each of the resin segments are fixed to each of the segments comprising the base ring, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 14, D1 discloses the segment seal according to claim 13, wherein a position of an outer-diameter-side portion of the resin ring (1, 2) is restricted by the base ring (In use, a position of an outer-diameter-side portion of the resin ring is restricted by the base ring. Outer diameter portion of resin ring toward 11 defines the outer diameter side portion. Figure 2), the resin ring (1,2) has an axial surface including an inner peripheral end portion of the resin ring (Inner diameter portion of resin ring has an axial surface, Figure 2.), and the axial surface of the resin ring (1,2) is parallel to an axial surface of the base ring (3) opposite the axial surface of the resin ring (Figure 2.) For claim 15, D1 discloses the segment seal according to claim 14, but does not disclose wherein the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess. D2 teaches a seal assembly seal rings 3, 3. Seal ring 3 on the right has a recess that is open on an inner diameter side of the other seal ring 3. Seal ring 3 on the left is disposed in the recess of the seal ring 3 on the left via 10, for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 16, D1 discloses the segment seal according to claim 4, wherein the resin ring (1,2) is comprised by a plurality of resin segments segmented in the circumferential direction (P3, para. [2]), and each of the resin segments are fixed to each of the segments comprising the base ring. D2 teaches a seal assembly seal rings 3, 3. One seal ring 3 has a protrusion 10 on a side surface, and the other seal ring 3 has depression to receive the protrusion 10 for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, each of the resin segments are fixed to each of the segments comprising the base ring, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 17, D1 discloses the segment seal according to claim 16, wherein a position of an outer-diameter-side portion of the resin ring (1, 2) is restricted by the base ring (In use, a position of an outer-diameter-side portion of the resin ring is restricted by the base ring. Outer diameter portion of resin ring toward 11 defines the outer diameter side portion. Figure 2), the resin ring (1,2) has an axial surface including an inner peripheral end portion of the resin ring (Inner diameter portion of resin ring has an axial surface, Figure 2.), and the axial surface of the resin ring (1,2) is parallel to an axial surface of the base ring (3) opposite the axial surface of the resin ring (Figure 2.) For claim 18, D1 discloses the segment seal according to claim 17, but does not disclose wherein the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess. D2 teaches a seal assembly seal rings 3, 3. Seal ring 3 on the right has a recess that is open on an inner diameter side of the other seal ring 3. Seal ring 3 on the left is disposed in the recess of the seal ring 3 on the left via 10, for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, the base ring (3) has a recess that is open on an inner diameter side, and the resin ring is disposed in the recess, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 19, D1 discloses the segment seal according to claim 5, wherein the resin ring (1,2) is comprised by a plurality of resin segments segmented in the circumferential direction (P3, para. [2]), and each of the resin segments are fixed to each of the segments comprising the base ring. D2 teaches a seal assembly seal rings 3, 3. One seal ring 3 has a protrusion 10 on a side surface, and the other seal ring 3 has depression to receive the protrusion 10 for secured assembly. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to modify D1 such that, each of the resin segments are fixed to each of the segments comprising the base ring, as taught by D2 with a reasonable expectation of success of having a secured assembly. For claim 20, D1 discloses the segment seal according to claim 19, wherein a position of an outer-diameter-side portion of the resin ring (1, 2) is restricted by the base ring (In use, a position of an outer-diameter-side portion of the resin ring is restricted by the base ring. Outer diameter portion of resin ring toward 11 defines the outer diameter side portion. Figure 2), the resin ring (1,2) has an axial surface including an inner peripheral end portion of the resin ring (Inner diameter portion of resin ring has an axial surface, Figure 2.), and the axial surface of the resin ring (1,2) is parallel to an axial surface of the base ring (3) opposite the axial surface of the resin ring (Figure 2.) Conclusion Prior art made of record and not relied upon is considered pertinent to applicant's disclosure and provides example of invention. A few of the prior art cited but not applied includes Miller (US Pub. 2016-0010483); Garrison (US Pub. 2016-0053808); and Kuroki (US 9,316,316). Any inquiry concerning this communication or earlier communications from the examiner should be directed to NATHAN CUMAR whose telephone number is (571)270-3112. The examiner can normally be reached Monday thru Friday, 8:00 am to 5:00 pm EST. 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, KRISTINA FULTON can be reached at 571-272-7376. 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. /NATHAN CUMAR/Primary Examiner, Art Unit 3675
Read full office action

Prosecution Timeline

Feb 12, 2025
Application Filed
Aug 18, 2026
Non-Final Rejection mailed — §102, §103 (current)

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Prosecution Projections

1-2
Expected OA Rounds
79%
Grant Probability
93%
With Interview (+14.6%)
2y 6m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1220 resolved cases by this examiner. Grant probability derived from career allowance rate.

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