Prosecution Insights
Last updated: July 17, 2026
Application No. 18/708,710

THREAD GUIDE DEVICE FOR A WINDING APPARATUS

Final Rejection §103
Filed
May 09, 2024
Priority
Nov 10, 2021 — DE 10 2021 129 226.3 +1 more
Examiner
SOTO, HENRIX
Art Unit
3654
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Rieter Automatic Winder GmbH
OA Round
2 (Final)
71%
Grant Probability
Favorable
3-4
OA Rounds
5m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
108 granted / 152 resolved
+19.1% vs TC avg
Strong +31% interview lift
Without
With
+31.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
53 currently pending
Career history
194
Total Applications
across all art units

Statute-Specific Performance

§103
77.1%
+37.1% vs TC avg
§102
7.2%
-32.8% vs TC avg
§112
13.9%
-26.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 152 resolved cases

Office Action

§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 § 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. Claim(s) 1-7 and 12-13 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bruns (DE19546081A1) in view of Lehmann (US4169564A). Regarding claims 1 and 12-13, Bruns discloses a thread guide device (10; Figures 1-2) for a winding apparatus (1) of a workstation of a textile machine producing cross-wound bobbins (5), wherein the winding apparatus (1) has a bobbin drive roller (4) for rotating a cross-wound bobbin (5), and also a thread traversing device (2, 3) for traversing a thread (6) running onto a surface of the cross-wound bobbin (5) within a thread traversing triangle (9), wherein the thread guide device (10) has a spherically designed thread slide surface (20; Figure 5), but fails to teach wherein the thread slide surface that, when in use of the winding apparatus, is configured to extend beyond sides of the thread traversing triangle such that the thread is in constant contact with the thread slide surface as it is cross-wound on the bobbin within the thread traversing triangle. Lehmann teaches a similar thread guide device and further teaches wherein the thread slide surface (6; Figure 1) that, when in use of the winding apparatus, is configured to extend beyond sides of the thread traversing triangle (Figure 1; arc length of guide member 6 extends beyond the thread triangle (broken lines of F)) such that the thread (F) is in constant contact with the thread slide surface (6) as it is cross-wound on the bobbin (30) within the thread traversing triangle. It would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify the thread guide device of Bruns to include the thread slide surface of an increased diameter as taught by Lehmann in order to ensure that the thread is supported through the traversing path of the thread triangle to maintain tension. Furthermore, it would be obvious to one skilled in the art that the ideal diameter of the spherical thread slide surface of Bruns can be determined and enlarged to ensure proper engagement of the guide with the thread. Regarding claims 2-3, Bruns discloses wherein a spherical design of the thread slide surface (10) is independent of a width of the cross-wound bobbins (5) to be produced; wherein the thread guide device (10) is arranged upstream of the thread traversing device (2, 3). Regarding claims 4-7, Bruns discloses wherein the thread traversing triangle (9; Figure 1) is defined upstream of a last thread guide point (18) of the workstation during a winding operation; wherein the thread traversing triangle (9) has corner points (both ends of bobbin 5 and the point at thread guide 18); wherein one of the corner points is predetermined by the last thread guide point (18); wherein remaining ones of the corner points (both ends of bobbin 5) are predetermined by reversal points of guide contours (guide grooves 2, 3) of a thread guide (traversing guide device 2, 3) that is driven in a back-and-forth traversal path to wind the thread (6) onto the cross-wound bobbin (5). Claim(s) 8 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bruns, in view of Lehmann, and in further view of Dysart (US3130938A). Regarding claim 8, modified Bruns discloses the above thread guide device, but fails to teach wherein the thread guide device is made of stainless steel. Dysart teaches a similar thread guide device and further teaches wherein the thread guide device (10; Figure 1) is made of stainless steel (column 2, lines 39-41). It would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify the thread guide device of Bruns to include the stainless steel thread guide device as taught by Dysart in order to provide improved corrosion and heat resistant material. Since it has been held to be within the general skill of a worker in the art to select known material on the basis of its suitability for the intended use as a matter of obvious design choice. In re Leshin, 125 USPQ 416. Claim(s) 9 is/are rejected under 35 U.S.C. 103 as being unpatentable over Bruns, in view of Lehmann, and in further view of Havey (US1966500A). Regarding claim 9, modified Bruns discloses the above thread guide device and further teaches wherein the thread guide device (10) is configured to be fastened to a housing (Figures 1 and 3-5) of the workstation, but fails to teach wherein the thread guide device is demountable. Havey teaches a similar thread guide device and further teaches wherein the thread guide device (11; Figure 1) is demountable (guide 11 includes removable fasteners at the end of guide). It would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify the thread guide device of Bruns to include a demountable thread guide device as taught by Havey in order to easily replace the guide device when worn by the abrasion of the thread. Response to Arguments Applicant's arguments filed 03/17/2026 with respect to claim 1 have been fully considered but they are not persuasive. Regarding claim 1, in the last two paragraphs of page 5, pages 6-7, and first three paragraphs of page 8, the applicant argued that the disclosure of Bruns fails to teach wherein the thread slide surface that, when in use of the winding apparatus, is configured to extend beyond sides of the thread traversing triangle such that the thread is in constant contact with the thread slide surface as it is cross-wound on the bobbin within the thread traversing triangle. The examiner agrees that the disclosure of Bruns fails to teach wherein the thread slide surface that, when in use of the winding apparatus, is configured to extend beyond sides of the thread traversing triangle such that the thread is in constant contact with the thread slide surface as it is cross-wound on the bobbin within the thread traversing triangle. However, the examiner construed that the disclosure of Lehmann teaches a guide device with a thread slide surface that is configured to extend beyond sides of the thread traversing triangle such that the thread is in constant contact with the thread slide surface as it is cross-wound on the bobbin within the thread traversing triangle. It would be obvious to one skilled in the art that the ideal diameter of the spherical thread slide surface of Bruns can be determined and enlarged as taught by Lehmann in order to ensure proper engagement and support of the guide with the thread to maintain tension of the thread. Allowable Subject Matter The following is a statement of reasons for the indication of allowable subject matter: Claim 10 is allowable over the prior art of record because the prior art of record fails to teach or fairly suggest the entire combination of elements set forth including for disclosing wherein the thread guide device has mounting devices in or on which thread guide pins spaced apart from one another can be fastened. Claim 11 is allowable because it is a dependent of claim 10. 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 HENRIX SOTO whose telephone number is (571)270-5394. The examiner can normally be reached Monday - Friday 8am - 5pm ET. 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, VICTORIA AUGUSTINE can be reached at (313)446-4858. 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. /H.S./Examiner, Art Unit 3654 /Victoria P Augustine/ Supervisory Patent Examiner, Art Unit 3654
Read full office action

Prosecution Timeline

May 09, 2024
Application Filed
Nov 17, 2025
Non-Final Rejection mailed — §103
Mar 17, 2026
Response Filed
Apr 08, 2026
Final Rejection (signed) — §103
Jun 24, 2026
Final Rejection mailed — §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
71%
Grant Probability
99%
With Interview (+31.1%)
2y 7m (~5m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 152 resolved cases by this examiner. Grant probability derived from career allowance rate.

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