Office Action Predictor
Last updated: April 15, 2026
Application No. 18/201,117

ROBOT CLEANER FOR CLIMBING AND CLEANING STAIRS

Non-Final OA §102§103
Filed
May 23, 2023
Examiner
MASIH, KAREN
Art Unit
2846
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Migo Robotics CORP
OA Round
1 (Non-Final)
91%
Grant Probability
Favorable
1-2
OA Rounds
1y 11m
To Grant
97%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allow Rate
904 granted / 996 resolved
+22.8% vs TC avg
Moderate +6% lift
Without
With
+6.3%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
25 currently pending
Career history
1021
Total Applications
across all art units

Statute-Specific Performance

§101
4.8%
-35.2% vs TC avg
§103
54.1%
+14.1% vs TC avg
§102
11.2%
-28.8% vs TC avg
§112
17.0%
-23.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 996 resolved cases

Office Action

§102 §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 § 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) 1-6, 11-17, 20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by KR20160055731. KR20160055731 discloses method for controlling a robot cleaner to climb a stair, whin the robot cleaner comprises a main body , at least one leg and at least one connector connecting leg to main body, whin method comprises rotating main body relative to at least one leg to be substantially vertical to a thread of the stir, rotating main body to lay flat on the tread, rotating the at least one leg to align with at least one connector and rotating the at least one leg to lay flat on the tread, see abstract , fig 3, fig 1, fig 6 and under background second paragraph, under description of embodiment paragraph 13 and see claims . Claim 2 -6 , discloses in fig 3 #210 and 300 first and second leg, and 3d rotating one leg while other is flat , and static of claim 3 in fig 3 , claim 11 , #340 disclose universal wheel. Claims 12-17 are disclosed in fig 3, fig 1 fig 6 and under background second paragraph under description of embodiment paragraph 13 and see claims . Claim Rejections - 35 USC § 103 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) 9 is is/are rejected under 35 U.S.C. 103 as being unpatentable over KR20160055731 in view of KR20220031587 . KR20160055731 disclosed above lacks lidar sensor . KR20220031587 discloses Lidar , see description embodiment paragraph 16 . It would have been obvious to one of ordinary skill in the art before effective filing date of claimed invention to combine the robot of KR20160055731 with lidar sensor of KR20220031587 for small objects for improved control . Allowable Subject Matter Claim7,8,10,18,19 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. Prior art does not disclose leaning forward or backward form stair to adjust a gravity center of robot cleaner and adjusting length of connector according to height of stair. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. CN118832603 and KR 20120073617 discloses robot cleaner and vertical wall and stair . Any inquiry concerning this communication or earlier communications from the examiner should be directed to KAREN MASIH whose telephone number is (571)272-2068. The examiner can normally be reached m-f 8-5 with second Friday off. 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, Eduardo Colon Santana can be reached at 571-272-2060. 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. /KAREN MASIH/Primary Examiner, Art Unit 2846
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Prosecution Timeline

May 23, 2023
Application Filed
Dec 10, 2025
Non-Final Rejection — §102, §103
Mar 31, 2026
Response Filed

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
91%
Grant Probability
97%
With Interview (+6.3%)
1y 11m
Median Time to Grant
Low
PTA Risk
Based on 996 resolved cases by this examiner. Grant probability derived from career allow rate.

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