Prosecution Insights
Last updated: July 17, 2026
Application No. 18/600,101

SNOW BLOWER AND NON-CLOGGING CHUTE

Final Rejection §102
Filed
Mar 08, 2024
Priority
Mar 10, 2023 — provisional 63/451,418
Examiner
PEZZUTO, ROBERT ERIC
Art Unit
3671
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
MILWAUKEE ELECTRIC TOOL Corporation
OA Round
2 (Final)
85%
Grant Probability
Favorable
3-4
OA Rounds
0m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 85% — above average
85%
Career Allowance Rate
1105 granted / 1296 resolved
+33.3% vs TC avg
Moderate +10% lift
Without
With
+9.8%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
27 currently pending
Career history
1313
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
51.4%
+11.4% vs TC avg
§102
25.9%
-14.1% vs TC avg
§112
12.2%
-27.8% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1296 resolved cases

Office Action

§102
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 . 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 1 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Tome (USP 3,921,315). Regarding claim 1: Tome discloses a snow blower (as seen in figures 1-5) comprising: a frame (as seen in figure 1, area of 10) defining an inlet opening and an outlet opening, the outlet opening being circumferentially bounded about a chute axis (as seen in annotated figure 2 below); a rotatable auger (as seen in figure 1, at 14) mounted to the frame rearward from the inlet opening and below the outlet opening to motivate snow to the outlet opening; one or more wheels (as seen in figure 1, at 12) mounted to the frame apart from the rotatable auger to support the snow blower; a chute body (as seen in figures 1-5, at 28) extending from the frame along the chute axis above the outlet opening; and a plurality of clearing blades (as seen in figures 2 and 3, at 36) selectively extending across at least a portion of the outlet opening (as seen in annotated figure 3 below) perpendicular to the chute axis and upstream from the chute body to disperse snow from the rotatable auger to the chute body within the outlet opening. PNG media_image1.png 208 242 media_image1.png Greyscale PNG media_image2.png 179 233 media_image2.png Greyscale Figure 3 Allowable Subject Matter Claims 2-6 care 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. Claims 7, 8, 10-18 and 20 are allowed. Response to Arguments Applicant’s arguments with respect to claim 1 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. 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. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ROBERT ERIC PEZZUTO whose telephone number is (703)756-1320. The examiner can normally be reached Monday-Friday 7am-3:30pm. 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, Joseph M. Rocca can be reached at 571-272-8971. 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. /ROBERT E PEZZUTO/Examiner, Art Unit 3671
Read full office action

Prosecution Timeline

Mar 08, 2024
Application Filed
Mar 17, 2026
Non-Final Rejection mailed — §102
Apr 29, 2026
Interview Requested
May 07, 2026
Applicant Interview (Telephonic)
May 07, 2026
Examiner Interview Summary
May 26, 2026
Response Filed
Jul 10, 2026
Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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4y 7m to grant Granted Jul 14, 2026
Patent 12680278
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4y 3m to grant Granted Jul 14, 2026
Patent 12677738
LAWN MOWER
3y 10m to grant Granted Jul 14, 2026
Patent 12677723
CONCURRENT FIELD AND TRANSPORT CYLINDER ACTUATION FOR MOWING DEVICE TRANSPORT
3y 0m to grant Granted Jul 14, 2026
Patent 12677749
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2y 5m to grant Granted Jul 14, 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
85%
Grant Probability
95%
With Interview (+9.8%)
2y 1m (~0m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 1296 resolved cases by this examiner. Grant probability derived from career allowance rate.

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