Prosecution Insights
Last updated: August 14, 2026
Application No. 18/858,734

Linear Plain Bearing

Final Rejection §112
Filed
Oct 21, 2024
Priority
Apr 22, 2022 — DE 20 2022 102 167.8 +1 more
Examiner
NGUYEN, AIMEE TRAN
Art Unit
3617
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Igus GmbH
OA Round
2 (Final)
80%
Grant Probability
Favorable
3-4
OA Rounds
1m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allowance Rate
124 granted / 155 resolved
+28.0% vs TC avg
Moderate +15% lift
Without
With
+14.8%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
28 currently pending
Career history
188
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
41.4%
+1.4% vs TC avg
§102
31.0%
-9.0% vs TC avg
§112
26.9%
-13.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 155 resolved cases

Office Action

§112
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 Objections Claim 1 is objected to because of the following informalities: In claim 1, line 13, the phrase “inner contour (22)” should be –inner contour (24)-- to match the drawings but since reference characters are not read into the claim it is not necessary but a recommendation for clarity. In claim 1, line 15, the phrase “inner contour (22)” should be –inner contour (24)-- to match the drawings but since reference characters are not read into the claim it is not necessary but a recommendation for clarity. Appropriate correction is required. Claim Interpretation The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. “Connection means” in claims 22-23 is being interpreted under 35 U.S.C. 112(f). The recited function is supported in paras. [0042]-[0044]. Claim Rejections - 35 USC § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 2 and 4-11 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. In claim 2, the limitation states “at least one linear guide element of the carriage has a cross section with a complementary inner contour” but claim 1 already states that “an inner contour of the linear guide element that is included in the supporting guide”. It is unclear if the same “inner contour” is being claimed or if it is the other one. In claim 4, the limitation “the linear guide element that corresponds to the supporting guide has an inner contour” is a double inclusion as “an inner contour” is already claimed in claim 1. In claim 9, the limitation “an inner contour” is a double inclusion as “an inner contour” is already claimed claim 1. In claim 11, the limitation “an inner contour” is a double inclusion as “an inner contour” is already claimed claim 1. Allowable Subject Matter Claims 1 and 14-26 are allowed. The following is an examiner’s statement of reasons for allowance: the prior art of record does not disclose nor render obvious the combination set forth in claims 1 and 19. Regarding claim 1, the prior art of record does not disclose nor render obvious the linear plain bearing wherein the oval cross section of the inner contour of the linear guide element is composed of two circular arcs divided by a straight line section in combination with the other claim limitations. Regarding claim 19, the prior art of record does not disclose nor render obvious the linear plain bearing wherein, on a side of the supporting guide, an inner contour of the linear guide element has a width which is larger than a width or a diameter of an outer contour of the plain bearing element, such that the play relative to the plain bearing element is formed in combination with the other claim limitations. Any comments considered necessary by applicant must be submitted no later than the payment of the issue fee and, to avoid processing delays, should preferably accompany the issue fee. Such submissions should be clearly labeled “Comments on Statement of Reasons for Allowance.” Response to Arguments With regards to the 35 U.S.C. 112(b) rejections, applicant amendments have overcome the previously raised issue. With regards to the 35 U.S.C. 102(a)(1) rejections, applicant amendments have overcome the previously raised issue. With regards to the 35 U.S.C. 103 rejections, applicant amendments have overcome the previously raised issue. 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 AIMEE T NGUYEN whose telephone number is (571)272-5250. The examiner can normally be reached M-F 10-7 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, John Olszewski can be reached at 571-272-2706. 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. /AIMEE TRAN NGUYEN/Examiner, Art Unit 3617 /JOHN OLSZEWSKI/Supervisory Patent Examiner, Art Unit 3617
Read full office action

Prosecution Timeline

Oct 21, 2024
Application Filed
Mar 13, 2026
Non-Final Rejection mailed — §112
May 27, 2026
Response Filed
Jun 23, 2026
Final Rejection mailed — §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12692899
BEARING ASSEMBLY
2y 9m to grant Granted Jul 28, 2026
Patent 12692900
ROLLING ELEMENT CAGE AND DISPLACEMENT UNIT
2y 3m to grant Granted Jul 28, 2026
Patent 12669148
GUIDE DEVICE
2y 1m to grant Granted Jun 30, 2026
Patent 12650147
VEHICULAR WHEEL BEARING HAVING IMPROVED SEALING PROPERTY
1y 12m to grant Granted Jun 09, 2026
Patent 12631218
ROLLING BEARING DEVICE APPARATUS WITH SEAL AND BYPASS DEVICE
2y 5m to grant Granted May 19, 2026
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
80%
Grant Probability
95%
With Interview (+14.8%)
1y 11m (~1m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 155 resolved cases by this examiner. Grant probability derived from career allowance rate.

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