Prosecution Insights
Last updated: April 19, 2026
Application No. 18/844,677

BELT TENSION ADJUSTMENT SYSTEM

Final Rejection §102§Other
Filed
Sep 06, 2024
Examiner
LIU, HENRY Y
Art Unit
3654
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Husqvarna AB
OA Round
2 (Final)
76%
Grant Probability
Favorable
3-4
OA Rounds
2y 8m
To Grant
88%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allow Rate
997 granted / 1315 resolved
+23.8% vs TC avg
Moderate +13% lift
Without
With
+12.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 8m
Avg Prosecution
19 currently pending
Career history
1334
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
49.8%
+9.8% vs TC avg
§102
31.9%
-8.1% vs TC avg
§112
13.2%
-26.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1315 resolved cases

Office Action

§102 §Other
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 . DETAILED ACTION Claims 1-20 are currently pending in this application. 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, 11 is/are rejected under 35 U.S.C. 102a1 as being anticipated by KUHN (5,769,747). Regarding Claim 1, KUHN teaches A belt tensioning assembly for applying tension to a drive belt (20), the belt tensioning assembly comprising: a drive belt (20) configured to transfer torque from an engine; a pulley assembly (28) to guide the drive belt; a pulley adjustment arm (32) configured to move at least one pulley (28) from the pulley assembly to adjust the tension level of the drive belt; a tension keeping assembly (40)(42)(44) to set and maintain a desired level of tension in the drive belt by moving the at least one pulley (28); and an interface assembly (34)(36) to operably couple the tension keeping assembly to the pulley adjustment arm (32), wherein the tension keeping assembly (34)(36) comprises a setting portion (34) at which the desired level of tension in the drive belt (20) is set and a retaining portion (50)(52) at which the desired level of tension in the drive belt (20) is maintained. Regarding Claim 11, KUHN teaches A riding lawn care vehicle comprising: a frame to which wheels of the riding lawn care vehicle are attachable; an engine operably coupled to the frame, wherein the engine provides power to the wheels and to at least one cutting blade (12) of the riding lawn care vehicle; a cutting deck (14) operably coupled to the frame and comprising the at least one cutting blade and a drive belt (22), wherein the drive belt transfers torque from the engine to the at least one cutting blade; and a belt tensioning assembly (10) for applying tension to the drive belt to ensure the drive belt transfers torque from the engine to the at least one cutting blade (12), wherein the belt tensioning assembly (10) comprises a tension keeping assembly (50)(52)(34) to set and maintain a desired level of tension in the drive belt (22), and wherein the tension keeping assembly comprises a setting portion (34) at which the desired level of tension in the drive belt is set and a retaining portion (50)(52) at which the desired level of tension in the drive belt (22) is maintained. Allowable Subject Matter Claims 2-10, 12-20 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. The prior art does not teach or suggest wherein the tension keeping assembly further comprises: a tension adjustment arm configured to rotate to a desired tension level; a mounting bracket operably coupled to a cutting deck; and a fastening member operably coupling the tension adjustment arm to the mounting bracket with the other elements in Claim 2. The prior art does not teach or suggest wherein the tension keeping assembly further comprises:a tension adjustment arm configured to rotate to a desired tension level; a mounting bracket operably coupled to the cutting deck; and a fastening member operably coupling the tension adjustment arm to the mounting bracket with the other elements in Claim 12. Response to Arguments Applicant's arguments filed 10/8/2025 have been fully considered but they are not persuasive. Applicant argues that KUHN does not teach a setting portion at which the desired level of tension in the drive belt is set and a retaining portion at which the desired level of tension in the drive belt is maintained (Remarks pg. 2 para. 5). The setting portion (34) position relative to part (46) sets the desired level of tension while the retaining portion (50)(52) retains the relative position of 34 to part 46. Conclusion THIS ACTION IS MADE FINAL. 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 HENRY Y LIU whose telephone number is (571)270-7018. The examiner can normally be reached 9-5:30 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, ROBERT W HODGE can be reached at 5712722097. 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. HENRY Y. LIU Examiner Art Unit 3654 /HENRY Y LIU/Primary Examiner, Art Unit 3654
Read full office action

Prosecution Timeline

Sep 06, 2024
Application Filed
Jul 07, 2025
Non-Final Rejection — §102, §Other
Oct 08, 2025
Response Filed
Mar 12, 2026
Final Rejection — §102, §Other (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12595829
SHIM FOR A VEHICLE BRAKE PAD HAVING HEAT DISSIPATION PORTIONS
2y 5m to grant Granted Apr 07, 2026
Patent 12595023
BICYCLE DERAILLEUR AND CHARGING CABLE FOR BICYCLE DERAILLEUR
2y 5m to grant Granted Apr 07, 2026
Patent 12595839
TIMING BELT TENSIONER FOR 3D PRINTER AND 3D PRINTER
2y 5m to grant Granted Apr 07, 2026
Patent 12589411
SYSTEMS FOR ABSORBING FLEXURAL WAVES ACTING UPON A STRUCTURE USING MONOPOLE AND DIPOLE RESONANCE
2y 5m to grant Granted Mar 31, 2026
Patent 12589723
SHEAR-TO-TORQUE GUIDE PIN ASSEMBLY FOR HEAVY-DUTY VEHICLES
2y 5m to grant Granted Mar 31, 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
76%
Grant Probability
88%
With Interview (+12.6%)
2y 8m
Median Time to Grant
Moderate
PTA Risk
Based on 1315 resolved cases by this examiner. Grant probability derived from career allow rate.

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