Prosecution Insights
Last updated: April 19, 2026
Application No. 18/529,114

Fluid Coupling Device and Method for Coupling Two Fluid Lines

Non-Final OA §102§112
Filed
Dec 05, 2023
Examiner
DUNWOODY, AARON M
Art Unit
3679
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Illinois Tool Works Inc.
OA Round
3 (Non-Final)
75%
Grant Probability
Favorable
3-4
OA Rounds
2y 10m
To Grant
87%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allow Rate
1201 granted / 1605 resolved
+22.8% vs TC avg
Moderate +12% lift
Without
With
+11.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
46 currently pending
Career history
1651
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
13.7%
-26.3% vs TC avg
§102
50.5%
+10.5% vs TC avg
§112
31.1%
-8.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1605 resolved cases

Office Action

§102 §112
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 . Continued Examination Under 37 CFR 1.114 A request for continued examination under 37 CFR 1.114, including the fee set forth in 37 CFR 1.17(e), was filed in this application after final rejection. Since this application is eligible for continued examination under 37 CFR 1.114, and the fee set forth in 37 CFR 1.17(e) has been timely paid, the finality of the previous Office action has been withdrawn pursuant to 37 CFR 1.114. Applicant's submission filed on 10/14/2025 has been entered. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1 and 13-20 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 (similar language in claim 13) recites, “…the locking sleeve includes at least one inner catching element for fixing the pre-assembly position and at least one outer catching element for fixing the locking sleeve in a final assembly position…a retaining element biased in the pre-assembly position and releasable by displacing the locking sleeve by means of the plug element in the direction of the conduction side of the socket element such that the retaining element is received in the final assembly position in the retaining groove and thereby a complete coupling of the socket element and the plug element is fixed in the final assembly position…”. The original disclosure recites: [0150] In the axial coupling, the socket element 5 and the plug element 6 are first moved or displaced in the axial direction relative to one another. In this way, the anti-rotation retaining recesses 16 of the locking sleeve 11 contact the protrusions 27 of the plug element 6, such that the locking sleeve 11 is displaced in the axial direction 2 in the direction of the conduction side of the socket element 5, thereby axially displacing the inner catching elements 15 of the locking sleeve 11 in the locking recesses 10 of the retaining ring 9. It can alternatively be provided that the inner catching elements 15 of the locking sleeve 11 are disengaged from the locking recesses 10 of the retaining ring 9. [0151] Through a further displacement of the locking sleeve 11 by means of the plug element 6, the outer catching elements 13 of the locking sleeve 11 finally lock into the retaining recesses 18 of the socket element 5 so that the retaining arms 21 of the retaining element 20 now move freely through the retaining element receiving slots 19 into the receiving space 7 and engage with the radially circumferential retaining groove 26 of the plug element 6. [0152] In this way, the final assembly position 24 is securely and reliably fixed. The retaining arms 21 or the retaining element 20 are not only moved radially inward, but also orthogonally to the axial direction 2 in the direction of the receiving space 7. [0153] In this way, a complete coupling of the socket element 5 and the plug element 6 is possible, and the final assembly position 24 is securely and reliably fixed. The original disclosure does not support the locking sleeve includes at least one inner catching element for fixing the pre-assembly position and at least one outer catching element for fixing the locking sleeve in a final assembly position…a retaining element biased in the pre-assembly position and releasable by displacing the locking sleeve by means of the plug element in the direction of the conduction side of the socket element such that the retaining element is received in the final assembly position in the retaining groove and thereby a complete coupling of the socket element and the plug element is fixed in the final assembly position. Therefore, the Examiner must conclude the claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. 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 2-6 and 9-12 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. Claim 2 recites, “and a retaining groove” and “a retaining groove is formed”; however, it is not clear to the Examiner whether or not there are two different retaining grooves. The Examiner is unable to determine the metes and bounds of the claim. Claim 2 recites, “the retaining element are receivable” and “a retaining element biased”; however, it is not clear to the Examiner whether or not there are two different retaining elements. The Examiner is unable to determine the metes and bounds of the claim. Claim Rejections - 35 USC § 102 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, 13 and 15-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by US 20210054957, Gocha. In regards to claim 1, in Figures 1-6 and paragraphs detailing said figures, Gocha discloses a fluid coupling apparatus for coupling two fluid lines along an axial direction, the fluid coupling apparatus comprising: a tubular socket element (16) having a conduction side (32) and a coupling side (22), wherein a locking sleeve (40) which is axially displaceable in a direction of the conduction side is arranged in the socket element and fixes a pre-assembly position, wherein the locking sleeve includes at least one inner catching element (86) for fixing the pre-assembly position and at least one outer catching element (46) for fixing the locking sleeve in a final assembly position; a tubular plug element (12) having a conduction side and a coupling side and a retaining groove (13), wherein a retaining groove is formed on an outside of the tubular plug element; and a retaining element (60) biased in the pre-assembly position and releasable by displacing the locking sleeve by means of the plug element in the direction of the conduction side of the socket element such that the retaining element is received in the final assembly position in the retaining groove and thereby a complete coupling of the socket element and the plug element is fixed in the final assembly position, wherein the retaining element is arranged orthogonally to the axial direction and is C-shaped (in as much as Applicant’s invention is shaped) and has two retaining arms (62, 64). In regard to claim 13, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses a method for axially coupling two fluid lines to a fluid coupling apparatus according to claim 1, comprising the following steps: introducing a tubular plug element in the axial direction into a tubular socket element; displacing a locking sleeve of the socket element in the direction of a conduction side of the socket element by means of the plug element; disengaging the at least one inner catching element of the locking sleeve from a locking recess with which the pre-assembly position has been fixed; locking an outer catching element in a retaining recess of the socket element; releasing a biased retaining element by the displacement of the locking sleeve; moving retaining arms of the retaining element radially inward and orthogonal to an axial direction in the direction of the socket element and the plug element, and inserting the retaining arms into a retaining groove of the plug element; and fixing the socket element and the plug element in a completely coupled final assembly position. In regard to claim 15, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses the at least one inner catching element extends radially inward and is arranged in the locking recess in the pre-assembly position. In regard to claim 16, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses the at least one outer catching element extends radially outward and is arranged in the locking recess in the final assembly position. In regard to claim 17, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses two retaining element slots extending orthogonally to an axial direction and arranged opposite one another are formed in the socket element. In regard to claim 18, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses the retaining groove extends orthogonally to the axial direction, in which, in a final assembly position, retaining arms of the retaining element are receivable. In regard to claim 19, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses the two retaining arms are arranged in the retaining slots in the pre-assembly position and abut an outer casing wall of the locking sleeve in a biased manner. In regard to claim 20, in Figures 1-6 and paragraphs [0033]-[0041], Gocha discloses the retaining arms are received in the retaining groove in the final assembly position after release by the locking sleeve and thereby fix a complete coupling of the socket element and the plug element in the final assembly position. Response to Arguments Applicant’s arguments with respect to claim(s) above have been considered but are moot because the new ground of rejection does not rely on any reference applied in the prior rejection of record for any teaching or matter specifically challenged in the argument. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to AARON M DUNWOODY whose telephone number is (571)272-7080. The examiner can normally be reached Monday - Friday 9:00 am - 6:00 pm. 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, Matthew Troutman can be reached at 571-270-3654. 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. /AARON M DUNWOODY/ Primary Examiner, Art Unit 3679
Read full office action

Prosecution Timeline

Dec 05, 2023
Application Filed
Mar 21, 2025
Non-Final Rejection — §102, §112
Jun 23, 2025
Response Filed
Aug 15, 2025
Final Rejection — §102, §112
Oct 14, 2025
Response after Non-Final Action
Dec 18, 2025
Request for Continued Examination
Jan 22, 2026
Response after Non-Final Action
Jan 23, 2026
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12601441
METHOD, DEVICE AND SYSTEM OF A HOSE RESTRAINT DEVICE INSTALLABLE ON A HOSE CARRYING A PRESSURIZED FLUID AND A FITTING THEREOF DURING OPERATION OF THE HOSE
2y 5m to grant Granted Apr 14, 2026
Patent 12601368
Split Coupler For Pipes
2y 5m to grant Granted Apr 14, 2026
Patent 12601434
FLUID CONNECTION ASSEMBLY
2y 5m to grant Granted Apr 14, 2026
Patent 12584575
QUICK CONNECT RELEASE SYSTEM FOR A FLUID COUPLING
2y 5m to grant Granted Mar 24, 2026
Patent 12584572
V-CLAMP WITH BAND LOCK
2y 5m to grant Granted Mar 24, 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
75%
Grant Probability
87%
With Interview (+11.9%)
2y 10m
Median Time to Grant
High
PTA Risk
Based on 1605 resolved cases by this examiner. Grant probability derived from career allow rate.

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