Prosecution Insights
Last updated: April 19, 2026
Application No. 18/555,945

OPTICAL FIBER CUTTING DEVICE

Final Rejection §102
Filed
Oct 18, 2023
Examiner
LEPISTO, RYAN A
Art Unit
2874
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Sumitomo Electric Industries, Ltd.
OA Round
2 (Final)
88%
Grant Probability
Favorable
3-4
OA Rounds
2y 0m
To Grant
96%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
1008 granted / 1146 resolved
+20.0% vs TC avg
Moderate +8% lift
Without
With
+7.7%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 0m
Avg Prosecution
48 currently pending
Career history
1194
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
45.3%
+5.3% vs TC avg
§102
35.6%
-4.4% vs TC avg
§112
11.4%
-28.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1146 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 . Response to Arguments Applicant's arguments filed 12/31/25 have been fully considered but they are not persuasive. Regarding the argument that Song does not disclose wherein the second connecting portion is a link mechanism including two or more link arms. Song teaches wherein the second connecting portion (31, 33, 37(33), 41, 45, 47) is a link mechanism including two or more link arms (33, 35 and 47). Note Song states the lever is number 37, but also 33 at one point so the rejection was updated to reflect this. The claim requires the second connection portion connects the lid body and the moving portion. The claim further requires the second connecting portion is a link mechanism including two or more link arms. This does not require the second connection portion to be ONLY two or more link arms, only that the second connection portion have two or more link arms and other components can be included. This is the case with Song, the second connection portion is considered (31, 33, 35, 37(33), 41, 45, 47) that connects the lid body (9) and the moving portion (7) (Fig. 3; C5 L55-59). The two or more link arms that make up a portion of the second connection portions are considered link arms (33, 35 and 47). Again, the link arms do not need to be the sole components that connect the lid body and the moving portions as the claim is currently written. 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. Claims 1 and 3 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Song (US 7,070,078 B2). Song teaches: Claim 1: An optical fiber cutting device (Figs. 1-6) that cuts an optical fiber (1), the device comprising: a main body (3); a lid body (9); a first connecting portion (hinge of 9, 17, 19) that rotatably connects the lid body (9) to the main body (3); a moving portion (7) including a blade portion (27) for scratching the optical fiber (1) and attached to the main body (3) to be movable between a first position (lid open, no cutting) and a second position (lid closed, fiber cutting); and a second connecting portion (31, 33, 35, 37(33), 41, 45, 47) that connects the lid body (9) and the moving portion (7) (Fig. 3), wherein the blade portion (27) is configured to scratch the optical fiber (1) while the moving portion (7) moves from the first position (lid open, no cutting) to the second position (lid closed, fiber cutting) (C5 L40-51), and as the lid body (9) rotates in a direction away from the main body (3), the moving portion (7) moves from the second position (lid closed, fiber cutting) to the first position (lid open, no cutting) via the second connecting portion (31, 33, 35, 37(33), 41, 45, 47) (C5 L52-59); wherein the second connecting portion (31, 33, 37(33), 41, 45, 47) is a link mechanism including two or more link arms (33, 35 and 47). Claim 3: The optical fiber cutting device according to claim 1, wherein the first connecting portion (hinge of 9, 17, 19) includes a first spring (that shapes of 17 with 19 will provide spring action when 9 is no longer biases closed) that biases the lid body to rotate (9) in a direction away from the main body (3) (C4 L31-36, C5 L52-59). Allowable Subject Matter Claims 4 and 5 are allowed. The following is a statement of reasons for the indication of allowable subject matter: These claims are allowable over the prior art of record because the latter, either alone or in combination, does not disclose nor render obvious an optical fiber cutting device with the claimed main body, lid body, first connecting portion, moving portion, second connecting portion and blade portion wherein a second spring biasing the moving portion to move from the first position to the second position; and a lock mechanism that locks the second spring in a compressed state, wherein the lid body includes a releasing portion that acts on the lock mechanism to release the lock when the lid body is closed, and when the moving portion moves from the second position to the first position via the second connecting portion, the moving portion compresses the second spring, and the lock mechanism locks the second spring in a compressed state, in combination with the rest of the claimed limitations. 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. Contact Information Any inquiry concerning this communication or earlier communications from the examiner should be directed to RYAN A LEPISTO whose telephone number is (571)272-1946. The examiner can normally be reached on 9AM-6PM EST M-F. 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, Thomas Hollweg can be reached on 571-270-1739. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /RYAN A LEPISTO/Primary Examiner, Art Unit 2874
Read full office action

Prosecution Timeline

Oct 18, 2023
Application Filed
Oct 15, 2025
Non-Final Rejection — §102
Dec 31, 2025
Response Filed
Jan 12, 2026
Final Rejection — §102
Mar 30, 2026
Examiner Interview Summary
Mar 30, 2026
Applicant Interview (Telephonic)
Apr 08, 2026
Request for Continued Examination
Apr 13, 2026
Response after Non-Final Action

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12591090
HOLLOW-CORE PHOTONIC CRYSTAL FIBER BASED EDIBLE OIL SENSOR
2y 5m to grant Granted Mar 31, 2026
Patent 12585077
FIBER OPTIC HOUSING AND CLIP
2y 5m to grant Granted Mar 24, 2026
Patent 12554069
MULTI-DIRECTIONAL ADAPTIVE OPTICAL DEVICE
2y 5m to grant Granted Feb 17, 2026
Patent 12541063
FERRULE HOLDER FOR MINIATURE MT FERRULE AND ADAPTER INTERFACE FOR MATING WITH FIBER OPTIC CONNECTORS
2y 5m to grant Granted Feb 03, 2026
Patent 12535641
OPTICAL CONNECTOR AND OPTICAL CONNECTOR MODULE
2y 5m to grant Granted Jan 27, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
88%
Grant Probability
96%
With Interview (+7.7%)
2y 0m
Median Time to Grant
Moderate
PTA Risk
Based on 1146 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month