Prosecution Insights
Last updated: September 17, 2026
Application No. 18/921,709

METHOD AND APPARATUS FOR PRODUCING FILAMENT ARRAY

Non-Final OA §102§103§112
Filed
Oct 21, 2024
Priority
Aug 21, 2018 — provisional 62/720,879 +2 more
Examiner
SOTO, HENRIX
Art Unit
3654
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Bc Machining Technologies Inc.
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
99%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
109 granted / 153 resolved
+19.2% vs TC avg
Strong +31% interview lift
Without
With
+31.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
48 currently pending
Career history
206
Total Applications
across all art units

Statute-Specific Performance

§103
48.0%
+8.0% vs TC avg
§102
22.5%
-17.5% vs TC avg
§112
25.4%
-14.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 153 resolved cases

Office Action

§102 §103 §112
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 . Drawings The drawings are objected to as failing to comply with 37 CFR 1.84(p)(5) because they do not include the following reference sign(s) mentioned in the description: In page 8, line 3, “234”. In page 9, line 16, “260”. In page 10, line 11, “270-1” and 270-2”. In page 13, line 23, “322”. In page 14, lines 2, 9, and 24, “328”, “382”, and “370”. Corrected drawing sheets in compliance with 37 CFR 1.121(d) are required in reply to the Office action to avoid abandonment of the application. Any amended replacement drawing sheet should include all of the figures appearing on the immediate prior version of the sheet, even if only one figure is being amended. Each drawing sheet submitted after the filing date of an application must be labeled in the top margin as either “Replacement Sheet” or “New Sheet” pursuant to 37 CFR 1.121(d). If the changes are not accepted by the examiner, the applicant will be notified and informed of any required corrective action in the next Office action. The objection to the drawings will not be held in abeyance. 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 42-44 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. Claim 42, line 2 recites “a braking assembly” – however claim 40, line 7 already set forth “a braking assembly” – therefore it is unclear if the second recitation is meant to refer to the first recitation or introduce an additional braking assembly. For purposes of examination, the second recitation is being interpreted as “the braking assembly”. Claim 43, line 2 recites “a tool holder” – however claim 40, line 2 already set forth “a holder” – therefore it is unclear if the second recitation is meant to refer to the first recitation or introduce an additional holder. For purposes of examination, the second recitation is being interpreted as “the holder”. Claim 44 is rejected because it is dependent on claim 43. 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. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claim(s) 40 and 43 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Wang (CN203778660U). Regarding claim 40, Wang discloses a filament applicator (14, 18, 25; Figures 1-3) comprising: a carriage (17) mountable to a holder (bottom base of vertical carriage 17 which sits on top of linear motor base 24) for movement parallel to a rotational axis of a workpiece (9); a spool (18) of filament rotatably mounted to the carriage (17); a guide assembly (14, 25, 27) defining a path for the filament to traverse, the guide assembly (14, 25, 27) comprising a plurality of capstans (14, 25); and a tension control device (16) comprising a braking assembly (page 8, last paragraph – page 9, lines 1-9; tension device 16 presses and creates a braking action on shaft 26) for resisting unwinding of the filament. Regarding claim 43, Wang discloses wherein the filament applicator (14, 18, 25) is mountable to a tool holder (bottom base of vertical carriage 17 which sits on top of linear motor base 24) operable to move the filament applicator (14, 18, 25) parallel to an axis. Claim Rejections - 35 USC § 103 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 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) 41 is/are rejected under 35 U.S.C. 103 as being unpatentable over Wang in view of Walter (US2313618A). Regarding claim 41, Wang discloses the above filament applicator, but fails to teach wherein the tension control device further comprises a tensioner, wherein the filament is woven around one of the plurality of capstans associated with the tensioner and the weight of the tensioner regulates the tension of the filament. Walter teaches a similar filament applicator and further teaches wherein the tension control device (36, 61; 47, 45, 51; Figure 1) further comprises a tensioner (47, 45, 51), wherein the filament (25) is woven around one of the plurality of capstans (34, 40, 41) associated with the tensioner (47, 45, 51) and the weight (51) of the tensioner (47, 45, 51) regulates the tension of the filament (25). It would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify the filament applicator of Wang to include the tensioner as taught by Walter in order to reduce slack and ensure tension is constantly applied to the filament. Claim(s) 42 is/are rejected under 35 U.S.C. 103 as being unpatentable over Wang in view of Lawson (US3575360A). Regarding claim 42, Wang discloses the above filament applicator, but fails to teach wherein the tension control device further comprises a braking assembly, wherein the braking assembly may be adjusted to control the friction applied to the filament by pressure plates. Lawson teaches a similar filament applicator and further teaches wherein the tension control device (31, 32, 59; Figures 1-2) further comprises a braking assembly (31, 32, 56, 57, 60, 61, 59), wherein the braking assembly (31, 32, 56, 57, 60, 61, 59) may be adjusted to control the friction applied to the filament by pressure plates (56, 57, 60, 61). It would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify the filament applicator of Wang to include the capstan braking assembly as taught by Lawson in order to directly dampen and maintain tension of the filament separately from the spool assembly. Claim(s) 44 is/are rejected under 35 U.S.C. 103 as being unpatentable over Wang in view of Heckman (US1252109A). Regarding claim 44, Wang discloses the above filament applicator, but fails to teach wherein the filament applicator is mountable to the tool holder at a skew relative to the axis. Heckman teaches a similar material applicator and further teaches wherein the material applicator (38, 59, 41; Figures 1-2) is mountable to the tool holder (29) at a skew relative to the axis (axis of mandrel 21). It would have been obvious to one of ordinary skill in the art before the filing date of the claimed invention to modify the filament applicator of Wang to include the skewed applicator as taught by Heckman in order to ensure that the filament is coiled in a uniformed helical pattern about the frame. Allowable Subject Matter Claims 23-39 are allowed. The following is a statement of reasons for the indication of allowable subject matter: Claim(s) 23 and 30 are be allowable over the prior art of record because the prior art of record fails to teach or fairly suggest the entire combination of elements set forth including for disclosing wherein the frame is skewed relative to the axis (“at a skewed orientation to a rotational axis” claim 30). Wang (CN203778660U), is the closest prior art, and teaches a method and apparatus of producing a filament assembly comprising a frame (9; Figures 1-3) with a flat side, the method comprising: mounting the frame to a workpiece (“frame” claim 30) holder (6, 7, 8) for rotating about an axis; dispensing a filament from a filament applicator (14, 18, 25), wherein the filament is advanced from a spool (18) of filament and the end of the filament is attached to the frame; and rotating the workpiece holder (shaft 5, 8) about the axis to draw the filament through the filament applicator; comprising moving the filament applicator parallel to the axis in synchronization with the rotation of the workpiece holder to wrap the filament around the frame in a series of parallel passes over the flat side; the filament applicator comprising: a spindle (26) for rotatably supporting a spool of filament; a guide assembly (14, 25, 27) defining a filament path; and a tension control device (16) for applying tension to the filament, but fails to teach wherein the frame is skewed relative to the axis (“at a skewed orientation to a rotational axis” claim 30). Claims 24-29 are allowable because they are dependents of claim 23. Claims 31-39 are allowable because they are dependents of claim 30. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Additional references listed on form PTO-892 are cited for their relevance to the disclosed invention and demonstration of the state of the art. Any inquiry concerning this communication or earlier communications from the examiner should be directed to HENRIX SOTO whose telephone number is (571)270-5394. The examiner can normally be reached Monday - Friday 8am - 5pm ET. 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, VICTORIA AUGUSTINE can be reached at (313)446-4858. 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. /H.S./Examiner, Art Unit 3654 /Victoria P Augustine/ Supervisory Patent Examiner, Art Unit 3654
Read full office action

Prosecution Timeline

Oct 21, 2024
Application Filed
Jan 24, 2025
Response after Non-Final Action
Apr 21, 2026
Non-Final Rejection (signed) — §102, §103, §112
Aug 27, 2026
Non-Final Rejection mailed — §102, §103, §112 (current)

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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
71%
Grant Probability
99%
With Interview (+31.3%)
2y 7m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 153 resolved cases by this examiner. Grant probability derived from career allowance rate.

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