Prosecution Insights
Last updated: July 17, 2026
Application No. 17/792,740

FRESNEL LENS MOLD AND MANUFACTURING METHOD THEREFOR, AND MANUFACTURING METHOD FOR FRESNEL LENS

Non-Final OA §102§103§112
Filed
Jul 14, 2022
Priority
Apr 13, 2020 — CN 202010283010.6 +1 more
Examiner
KENNEDY, TIMOTHY J
Art Unit
1744
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Chengdu Fscreen Sci-Tech Co. Ltd.
OA Round
1 (Non-Final)
71%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
88%
With Interview

Examiner Intelligence

Grants 71% — above average
71%
Career Allowance Rate
670 granted / 942 resolved
+6.1% vs TC avg
Strong +17% interview lift
Without
With
+17.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 10m
Avg Prosecution
57 currently pending
Career history
972
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
79.8%
+39.8% vs TC avg
§102
7.6%
-32.4% vs TC avg
§112
4.4%
-35.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 942 resolved cases

Office Action

§102 §103 §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 . Election/Restrictions Applicant’s election without traverse of claims 1-8 in the reply filed on 7/17/2025 is acknowledged. Claims 9-17 are withdrawn herein. Drawings The drawings are objected to under 37 CFR 1.83(a). The drawings must show every feature of the invention specified in the claims. Therefore, the reference strip as described in claim 7 must be shown or the feature(s) canceled from the claim(s). No new matter should be entered. 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. The figure or figure number of an amended drawing should not be labeled as “amended.” If a drawing figure is to be canceled, the appropriate figure must be removed from the replacement sheet, and where necessary, the remaining figures must be renumbered and appropriate changes made to the brief description of the several views of the drawings for consistency. Additional replacement sheets may be necessary to show the renumbering of the remaining figures. 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 Interpretation The Examiner wishes to point out to applicant that claims 1-8 are directed towards an apparatus and as such will be examined under such conditions. The material worked upon or the process of using the apparatus is viewed as recitation of intended use and is given patentable weight only to the extent that structure is added to the claimed apparatus (Please see MPEP 2112.01 I and 2114-2115 for further details). The following is a quotation of 35 U.S.C. 112(f): (f) Element in Claim for a Combination. – An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The following is a quotation of pre-AIA 35 U.S.C. 112, sixth paragraph: An element in a claim for a combination may be expressed as a means or step for performing a specified function without the recital of structure, material, or acts in support thereof, and such claim shall be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof. The claims in this application are given their broadest reasonable interpretation using the plain meaning of the claim language in light of the specification as it would be understood by one of ordinary skill in the art. The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked. As explained in MPEP § 2181, subsection I, claim limitations that meet the following three-prong test will be interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph: (A) the claim limitation uses the term “means” or “step” or a term used as a substitute for “means” that is a generic placeholder (also called a nonce term or a non-structural term having no specific structural meaning) for performing the claimed function; (B) the term “means” or “step” or the generic placeholder is modified by functional language, typically, but not always linked by the transition word “for” (e.g., “means for”) or another linking word or phrase, such as “configured to” or “so that”; and (C) the term “means” or “step” or the generic placeholder is not modified by sufficient structure, material, or acts for performing the claimed function. Use of the word “means” (or “step”) in a claim with functional language creates a rebuttable presumption that the claim limitation is to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites sufficient structure, material, or acts to entirely perform the recited function. Absence of the word “means” (or “step”) in a claim creates a rebuttable presumption that the claim limitation is not to be treated in accordance with 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. The presumption that the claim limitation is not interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is rebutted when the claim limitation recites function without reciting sufficient structure, material or acts to entirely perform the recited function. Claim limitations in this application that use the word “means” (or “step”) are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. Conversely, claim limitations in this application that do not use the word “means” (or “step”) are not being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, except as otherwise indicated in an Office action. This application includes one or more claim limitations that do not use the word “means,” but are nonetheless being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, because the claim limitation(s) uses a generic placeholder that is coupled with functional language without reciting sufficient structure to perform the recited function and the generic placeholder is not preceded by a structural modifier. Such claim limitation(s) is/are: “Reference unit” “Fixing unit” Because this/these claim limitation(s) is/are being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, it/they is/are being interpreted to cover the corresponding structure described in the specification as performing the claimed function, and equivalents thereof. Regarding “reference unit”: there is no single definition for this unit, however based on the disclosure the “reference unit” is seen as a shaping surface structure. Regarding “fixing unit”: paragraphs 0127, 0130, and 0131 show the fixing unit as a holding structure, and more specifically a flat surface. If applicant does not intend to have this/these limitation(s) interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, applicant may: (1) amend the claim limitation(s) to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph (e.g., by reciting sufficient structure to perform the claimed function); or (2) present a sufficient showing that the claim limitation(s) recite(s) sufficient structure to perform the claimed function so as to avoid it/them being interpreted under 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph. 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 3, 4, and 7 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 3 recites the limitation "the annular strips" at the end of line 5. There is insufficient antecedent basis for this limitation in the claim. Nowhere previously was strip pluralized, therefore there is no antecedent basis for having more than one strip. Claim 4 is rejected due to its dependency. For examination purposes “the annular strips” will be treated as “the annular strip”. Claim 7 recites the limitation "the innermost annular strip" at the start of line 3. There is insufficient antecedent basis for this limitation in the claim. Nowhere previously was strip pluralized, therefore one cannot describe a strip as the innermost, since this indicates a plurality of strips. For examination purposes claim 7 will be interpreted similarly to claim 6, where the innermost shape will be used as the stacking surface limitation. 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. Claims 1-5 and 8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Beshgetoor (US 2441747). Regarding claim 1: Beshgetoor teaches winding a metal tape T around a core C (Figure 1) and then shaping the wound tape to create a Fresnel lens mold (Figures 2-4). Regarding claim 2: The core C is the claimed reference unit and is shaped as claimed. Regarding claims 3 and 4: The core C is round which matches the shape of the tape T when wound. As seen in Figure 1 the tape T is wound on the contour surface of core C. The core C becomes part of the mold, thus it has an optical structure. Regarding claim 5: The core C is circular. A Fresnel lens mold, comprising a stacked strip, wherein the strip is bendable, and wherein an optical structure, which is complementary to a lens structure on a corresponding annular strip of a designed Fresnel lens, is provided at one edge of the strip Regarding claim 8: The mold of Beshgetoor would be made on a flat surface which matches the 112(f) interpretation of “fixing unit.” Claim Rejections - 35 USC § 103 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. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claims 6 and 7 are rejected under 35 U.S.C. 103 as being unpatentable over Beshgetoor. Regarding claim 6: Beshgetoor teachers a holder H for the tape T as seen in Figures 1-4, which matches the shape of the outermost layer of tape. The holder H is however not in the shape of a strip. Nevertheless, it would have been obvious to one having ordinary skill in the art at the time the invention was filed to have the holder in the needed shape, since the shape of a known structure is obvious absent persuasive evidence that the claimed shape is significant (MPEP 2144.04 IV B). Regarding claim 7: Beshgetoor teachers a core C that the tape T is wound on (as previously discussed), which matches the shape of the innermost layer of tape. The core C is however not in the shape of a strip. Nevertheless, it would have been obvious to one having ordinary skill in the art at the time the invention was filed to have the holder in the needed shape, since the shape of a known structure is obvious absent persuasive evidence that the claimed shape is significant (MPEP 2144.04 IV B). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure: GB 485629 teaches a plurality of rings with a fixing unit to make a Fresnel lens mold US 2404448 teaches a wound lens mold US 3739455 teaches a plurality of mold components to make a Fresnel lens mold JP S52128151 teaches stacking plates to make a Fresnel lens mold JP H06234532 teaches a plurality of rings with a fixing unit to make a Fresnel lens mold JP H08332638 teaches plurality of mold components to make a Fresnel lens mold Any inquiry concerning this communication or earlier communications from the examiner should be directed to TIMOTHY J KENNEDY whose telephone number is (571)270-7068. The examiner can normally be reached Mon-Fri 8am-5pm.. 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, Galen Hauth can be reached at 571-270-5516. 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. /TIMOTHY KENNEDY/Primary Examiner, Art Unit 1743
Read full office action

Prosecution Timeline

Jul 14, 2022
Application Filed
May 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
88%
With Interview (+17.4%)
2y 10m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 942 resolved cases by this examiner. Grant probability derived from career allowance rate.

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