Prosecution Insights
Last updated: April 19, 2026
Application No. 18/629,103

SHEET FEEDING APPARATUS AND IMAGE FORMING SYSTEM

Non-Final OA §102§112
Filed
Apr 08, 2024
Examiner
GOKHALE, PRASAD V
Art Unit
3653
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Canon Kabushiki Kaisha
OA Round
1 (Non-Final)
86%
Grant Probability
Favorable
1-2
OA Rounds
2y 3m
To Grant
94%
With Interview

Examiner Intelligence

Grants 86% — above average
86%
Career Allow Rate
832 granted / 968 resolved
+34.0% vs TC avg
Moderate +8% lift
Without
With
+8.1%
Interview Lift
resolved cases with interview
Typical timeline
2y 3m
Avg Prosecution
33 currently pending
Career history
1001
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
36.7%
-3.3% vs TC avg
§102
31.5%
-8.5% vs TC avg
§112
29.8%
-10.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 968 resolved cases

Office Action

§102 §112
DETAILED ACTION Claim Rejections - 35 USC § 112 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 and 3 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. Regarding Claim 2, it is claimed that walls support the rotation shaft hermetically however it is not understood how walls alone can perform this function. Claim 3 is rejected by dependency. 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, 9 and 10 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Ishikawa et al. (US Patent No. 4,838,534). Regarding Claim 1, Ishikawa et al. discloses an accommodating unit (i.e. ‘A’, Fig. 1, excluding the entire conveyor structure extending from 56 leftwards in Fig. 6) including a case (i.e. chassis comprising 3a, 3b, 3c, 3d, 85) forming an enclosed accommodating space configured to accommodate a sheet, a sheet discharge port (i.e. between 61 and 62 in Fig. 6) formed in a part of the case and through which the sheet is discharged outside from the case, and a sheet feed portion (40) configured to feed the sheet accommodated in the case to an outside of the case through the sheet discharge port; and a conveyance unit (i.e. the entire conveyor structure extending from 56 leftwards in Fig. 6) connected to the sheet discharge port of the accommodating unit and configured to convey the sheet discharged from the sheet discharge port, wherein the conveyance unit includes a first guide member (65c), a second guide member (73), walls on both sides (65a, 65b), a conveyance roller (68a), and a first cover (i.e. the bottom outer wall of the conveyor section, from which 66 extends downwards, see Fig. 6), wherein the first guide member includes a first opening (i.e. ‘aperture’, see lines 38-40 of Column 13), wherein the second guide member is arranged to face the first guide member (i.e. lines 28-32 of Column 14), wherein the walls on both sides are arranged on both sides of the first guide member and the second guide member in a width direction perpendicular to a sheet conveyance direction (i.e. see Fig. 7), wherein, together with the first guide member and the second guide member, the walls on both sides forms a space of a conveyance path through which the sheet is conveyed (i.e. lines 28-32 of Column 14, wherein the walls lead right to the top of 65c, such as to partly define the space of the passage, through which the sheet is conveyed), wherein the conveyance roller is disposed to project toward the conveyance path via the first opening and configured to convey the sheet in the conveyance path (i.e. 68a extends upwardly through the aperture, see lines 38-40 of Column 13), and wherein the first cover encloses the space of the conveyance path in such a manner that the first cover covers the first opening and the conveyance roller (i.e. since no direction, frame of reference or line of sight is specified by the claim, it may be construed that when looking upwards from below in Fig. 6, the bottom outer wall of the conveyor section covers the first opening and the conveyance roller, or any line of sight may be chosen such as to fulfill this requirement). Regarding Claim 9, Ishikawa et al. discloses an accommodating unit (i.e. ‘A’, Fig. 1, excluding the entire conveyor structure extending from 56 leftwards in Fig. 6) including a case (i.e. chassis comprising 3a, 3b, 3c, 3d, 85) forming an enclosed accommodating space configured to accommodate a sheet, a sheet discharge port (i.e. between 61 and 62 in Fig. 6) formed in a part of the case and through which the sheet is discharged outside from the case, and a sheet feed portion (40) configured to feed the sheet accommodated in the case to an outside of the case through the sheet discharge port; and a conveyance unit (i.e. the entire conveyor structure extending from 56 leftwards in Fig. 6) connected to the sheet discharge port of the accommodating unit and configured to convey the sheet discharged from the sheet discharge port, wherein the conveyance unit includes a first guide member (65c), a second guide member (73), walls on both sides (65a, 65b), a detection portion (S6), and a cover (i.e. the bottom outer wall of the conveyor section, from which 66 extends downwards, see Fig. 6), wherein the first guide member includes an opening (i.e. see the break in shading depicted in the lower guide just above S6 in Fig. 6), wherein the second guide member is arranged to face the first guide member (i.e. lines 28-32 of Column 14), wherein the walls on both sides are arranged on both sides of the first guide member and the second guide member in a width direction perpendicular to a sheet conveyance direction (i.e. see Fig. 7), wherein, together with the first guide member and the second guide member, the walls on both sides forms a space of a conveyance path through which the sheet is conveyed (i.e. lines 28-32 of Column 14, wherein the walls lead right to the top of 65c, such as to partly define the space of the passage, through which the sheet is conveyed), wherein the detection portion is configured to detect the sheet conveyed in the conveyance path via the opening (i.e. see lines 40-43 in Column 17), and wherein the cover encloses the space of the conveyance path in such a manner that the cover covers the opening and the detection portion (i.e. since no direction, frame of reference or line of sight is specified by the claim, it may be construed that when looking upwards from below in Fig. 6, the bottom outer wall of the conveyor section covers the opening and the detection portion, or any line of sight may be chosen such as to fulfill this requirement). Regarding Claim 10, Ishikawa et al. discloses an image forming apparatus (i.e. image forming machine B, also see Abstract) forming an image on the sheet fed from the sheet feeding apparatus. Allowable Subject Matter Claims 2-8 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 following is a statement of reasons for the indication of allowable subject matter: None of the prior art of record shows walls to extend from a second guide member toward a first guide member as claimed (Claims 2 and 3), a second cover as defined (Claims 4 and 5), a third cover as defined (Claims 6 and 7) or a sealing member as defined (Claim 8), in combination with the remaining elements. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Any inquiry concerning this communication or earlier communications from the examiner should be directed to PRASAD GOKHALE whose telephone number is (571)270-3543. The examiner can normally be reached Monday-Friday, 9am - 5:30pm. 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, Michael McCullough can be reached at (571) 272-7805. 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. /PRASAD V GOKHALE/Primary Examiner, Art Unit 3653 August 15, 2025
Read full office action

Prosecution Timeline

Apr 08, 2024
Application Filed
Aug 15, 2025
Non-Final Rejection — §102, §112 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12602071
VEHICLE PADS THAT EMULATE TRADITIONAL VEHICLE PEDALS AND INCLUDE MECHANICAL HYSTERESIS
2y 5m to grant Granted Apr 14, 2026
Patent 12589968
GUIDE MECHANISM AND PAPER SHEET HANDLING APPARATUS
2y 5m to grant Granted Mar 31, 2026
Patent 12589959
MEDIUM CONVEYANCE DEVICE
2y 5m to grant Granted Mar 31, 2026
Patent 12585300
COLLECTIVE CONTROL SYSTEM FOR A ROTORCRAFT
2y 5m to grant Granted Mar 24, 2026
Patent 12577068
SHEET FEEDING DEVICE AND IMAGE FORMING APPARATUS
2y 5m to grant Granted Mar 17, 2026
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
86%
Grant Probability
94%
With Interview (+8.1%)
2y 3m
Median Time to Grant
Low
PTA Risk
Based on 968 resolved cases by this examiner. Grant probability derived from career allow rate.

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