Prosecution Insights
Last updated: April 19, 2026
Application No. 18/843,809

CONTINUOUS ACTUATOR DRIVEN MATERIAL HANDLING SYSTEM FOR VERTICAL AND INCLINED SHAFTS

Non-Final OA §102
Filed
Sep 04, 2024
Examiner
SINGH, KAVEL
Art Unit
3651
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Nordic Minesteel Technologies Inc.
OA Round
1 (Non-Final)
84%
Grant Probability
Favorable
1-2
OA Rounds
2y 4m
To Grant
97%
With Interview

Examiner Intelligence

Grants 84% — above average
84%
Career Allow Rate
1086 granted / 1298 resolved
+31.7% vs TC avg
Moderate +14% lift
Without
With
+13.7%
Interview Lift
resolved cases with interview
Typical timeline
2y 4m
Avg Prosecution
29 currently pending
Career history
1327
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
45.0%
+5.0% vs TC avg
§102
40.1%
+0.1% vs TC avg
§112
12.9%
-27.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1298 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(s) 14 is rejected under 35 U.S.C. 102(a)(1) as being anticipated by Shimizu Corp JP 4374510. Claim 14, Shimizu Corp teaches a continuous actuator driven material handling system (Figs. 1-2) for raising and lowering bins 1 in a vertical or inclined shaft 2a,b P0009, comprising: a first pair of actuator assemblies 3, each of the first pair of actuator assemblies 3a configured to alternately raise a first bin 1 by an increment, a first actuator assembly of the first pair raising 3a the first bin 1 by the increment before handing the first bin 1 off to a second actuator assembly 3b of the first pair 3, the second actuator assembly 3b of the first pair raising the first bin 1 by the increment before handing the first bin 1 back to the first actuator assembly 3a of the first pair 3 P0011; a second pair of actuators assemblies 3 of 2b, each of the second pair of actuator assemblies3 configured to alternately lower a second bin 1 by the increment, a first actuator assembly 3a of the second pair lowering the second bin 1 by the increment before handing the second bin 1 off to a second actuator assembly 3b of the second pair 3 of 2b, the second actuator assembly 3b of the second pair 3 lowering the second bin 1 by the increment before handing the second bin 1 back to the first actuator assembly 3 of 2a of the second pair 3; a further plurality of first pairs 3 of actuator assemblies 3a mounted on a wall of the shaft 2a,b to thereby successively raise the first bin 1 up the shaft 2a; and, a further plurality of second pairs 3 of actuator assemblies mounted on the wall of the shaft 2b to thereby successively lower the second bin 1 down the shaft 2b P0012-0013. Allowable Subject Matter Claims 1-13 are allowed. The prior art does not fairly teach “A continuous material handling system, comprising: a plurality of bins, each bin having a plurality of bin lugs mounted on a wall of the bin, first and second bin lugs being vertically spaced on the wall of the bin; a first actuator assembly having a first rod, the first actuator operable to move an upper end of the first rod between a first retracted position and a first extended position, a first lifting link being pivotally attached to the upper end of the first rod, the first lifting link configured to engage one of the bin lugs; and, a second actuator assembly having a second rod, the second actuator operable to move an upper end of the second rod between a second retracted position and a second extended position” in combination with the rest of the claim language. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KAVEL SINGH whose telephone number is (571)272-2362. The examiner can normally be reached Monday - Thursday 8am-6pm. 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, Gene Crawford can be reached at (571) 272-6911. 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. /KAVEL SINGH/Primary Examiner, Art Unit 3651 KS
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Prosecution Timeline

Sep 04, 2024
Application Filed
Feb 11, 2026
Non-Final Rejection — §102 (current)

Precedent Cases

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Patent 12577057
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Patent 12577052
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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
84%
Grant Probability
97%
With Interview (+13.7%)
2y 4m
Median Time to Grant
Low
PTA Risk
Based on 1298 resolved cases by this examiner. Grant probability derived from career allow rate.

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