Prosecution Insights
Last updated: July 17, 2026
Application No. 18/926,557

BALANCE SPRING FOR A HOROLOGICAL REGULATING MEMBER PROVIDED WITH TEMPERATURE-DEPENDENT ADJUSTMENT MEANS

Non-Final OA §102§112
Filed
Oct 25, 2024
Priority
Dec 21, 2023 — EU 23219393.8
Examiner
COLLINS, JASON M
Art Unit
Tech Center
Assignee
Nivarox-FAR S.A.
OA Round
1 (Non-Final)
75%
Grant Probability
Favorable
1-2
OA Rounds
1y 0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 75% — above average
75%
Career Allowance Rate
386 granted / 517 resolved
+14.7% vs TC avg
Moderate +13% lift
Without
With
+13.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 9m
Avg Prosecution
17 currently pending
Career history
527
Total Applications
across all art units

Statute-Specific Performance

§103
73.1%
+33.1% vs TC avg
§102
12.1%
-27.9% vs TC avg
§112
10.7%
-29.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 517 resolved cases

Office Action

§102 §112
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 . Specification Applicant is reminded of the proper language and format for an abstract of the disclosure. The language should be clear and concise and should not repeat information given in the title. It should avoid using phrases which can be implied, such as, “The disclosure concerns,” “The disclosure defined by this invention,” “The disclosure describes,” etc. In addition, the form and legal phraseology often used in patent claims, such as “means” and “said,” should be avoided. The objected to language is “means”. 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 1-15 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. The term “several” in claim 1 is a relative term which renders the claim indefinite. The term “several” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. It is unclear how many turns are required to meet the claimed limitation “several turns”. For purposes of examination several will be interpreted to mean “at least two”. Claims 2-15 are rejected for depending on claim 1. Regarding claim 6, the claim limitation “which moves it according to its deformation” is unclear because “it” and “its” are unclear what they are referring to. Regarding claims 7 and 12, the claim term “preferably” is indefinite because it is not apparent if the phrase following the term is required by the claim or merely optional. For purposes of examination, it will be considered to be optional. 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. (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. Claims 1-10, 12 and 15 are rejected under 35 U.S.C. 102(a)(1) and 102(a)(2) as being anticipated by Di Domenico, US 2024/0027966. Regarding claim 1, Di Domenico discloses a balance spring for a horological regulating member, the balance spring comprising: a flexible strip (2) wound about itself in several turns, the strip having a predefined stiffness; adjusting means (resilient element 5) for adjusting the stiffness of the flexible strip; and actuation means (6) for actuating the adjustment means depending on the ambient temperature (see abstract and [0036]). Regarding claim 2, Di Domenico discloses the actuation means comprise an element (thermally deformable body 15), which can be deformed depending on the temperature. Regarding claim 3, Di Domenico discloses the deformable element comprises a temperature-sensitive material [0042]. Regarding claim 4, Di Domenico discloses the deformable element comprises a bimetallic attachment [0043]. Regarding claim 5, Di Domenico discloses the deformable element comprises a microstructure or nanostructure ([0044]-[0045], the deformation based on temperature is here is considered comprising a microstructure based on the small changes in structure of the deformable element). Regarding claim 6, Di Domenico discloses the actuation means comprise a support body (moveable body 12, 22) that can be moved by the deformable element, which moves it according to its deformation into a plurality of positions (see [0045]). Regarding claim 7, Di Domenico discloses the adjustment means comprise a flexible element (4) arranged in series with the strip, the flexible element connecting one end of said strip to a fixed support (7), so as to add additional stiffness following the strip, the flexible element preferably having a stiffness greater than that of the strip [0038]. Regarding claim 8, Di Domenico discloses the adjustment means comprise prestressing means (6) for applying a variable force or torque to the flexible element, so as to vary the stiffness of the flexible element [0041]. Regarding claim 9, Di Domenico discloses the support body (12, 22) is in contact with the prestressing means (6). Regarding claim 10, Di Domenico discloses the support body (12, 22) comprises a rod (12) provided with a first end mounted on the deformable element (15), and a second end mounted on the prestressing means (6). Regarding claim 12, Di Domenico discloses the flexible element comprises two flexible parts (Fig 1, 4), each of which connects the strip to the fixed support (Fig 1), the two flexible parts being arranged axially symmetrically relative to one another along an axis (axis along 11). Regarding claim 15, Di Domenico discloses a regulating member for a horological movement, the regulating member comprising an oscillating weight and the balance spring according to claim 1 (abstract). Allowable Subject Matter Claims 11, 13 and 14 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), 2nd paragraph, set forth in this Office action and to include 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: The prior art fails to disclose or reasonably suggest the claimed invention particularly including wherein the actuation means comprise a fixed pin, which allows the rod to form a lever. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JASON COLLINS whose telephone number is (571)270-3994. The examiner can normally be reached 9:30 AM - 6:00 PM. 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, Renee Luebke can be reached at 571-272-2009. 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. /JASON M COLLINS/ Examiner, Art Unit 2831 /EDWIN A. LEON/ Primary Examiner, Art Unit 2831
Read full office action

Prosecution Timeline

Oct 25, 2024
Application Filed
Jun 26, 2026
Non-Final Rejection mailed — §102, §112 (current)

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VISUAL TIMER
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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
75%
Grant Probability
88%
With Interview (+13.0%)
2y 9m (~1y 0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 517 resolved cases by this examiner. Grant probability derived from career allowance rate.

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