Prosecution Insights
Last updated: May 04, 2026
Application No. 18/198,854

MANUFACTURING METHOD OF METAL MASK AND METAL MASK THEREOF

Non-Final OA §103§112
Filed
May 18, 2023
Priority
Dec 07, 2022 — TW 111147016
Examiner
MOORE, KARLA A
Art Unit
1716
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Darwin Precisions Corporation
OA Round
1 (Non-Final)
43%
Grant Probability
Moderate
1-2
OA Rounds
1y 1m
Est. Remaining
58%
With Interview

Examiner Intelligence

Grants 43% of resolved cases
43%
Career Allowance Rate
330 granted / 767 resolved
-22.0% vs TC avg
Moderate +15% lift
Without
With
+14.6%
Interview Lift
resolved cases with interview
Typical timeline
4y 1m
Avg Prosecution
73 currently pending
Career history
840
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
48.5%
+8.5% vs TC avg
§102
16.0%
-24.0% vs TC avg
§112
28.8%
-11.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 767 resolved cases

Office Action

§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 . Election/Restrictions Applicant's election with traverse of Invention II in the reply filed on 2 March 2026 is acknowledged. The traversal is on the ground(s) that the elected and nonelected claims are closely related in practice and are directed to interrelated aspects of a single inventive concept. This is not found persuasive because still, as claimed, the inventions are disparate enough that they will require different search strategies and search areas. Additionally, with respect to claim 17, it is noted that the product-by-process format is examined according to the guidelines set by forth in MPEP 2113. The requirement is still deemed proper and is therefore made FINAL. Claims 1-12 are withdrawn from further consideration pursuant to 37 CFR 1.142(b), as being drawn to a nonelected invention, there being no allowable generic or linking claim. Applicant timely traversed the restriction (election) requirement in the aforementioned reply. Claim Interpretation 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: first etching part and second etching part which have been interpreted as an aperture or hole and equivalents thereto as set forth in in the specification, e.g., at para. 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. 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 13-16 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 13 recites “a first etching part having a first opening” and “a second etching part having a second opening”. Examiner understands the first etching part to be congruent to the first opening and the second etching part to be congruent to the second opening and not that they are separate features, respectively, as the claim language appears to suggest. In order to expedite examination, Examiner has examined the claim based on their understanding. Clarification and/or correction is requested. Claims 14-16 refers to various features previously recited without clearly stating the relationships thereof. Note: claim 14 is dependent on claim 13, claim 15 is dependent on claim 14, and claim 16 is dependent on 17. Also, the language below is based on Applicant’s understanding, Applicant should review the same ensure correspondence with their intended claimed invention and their originally disclosed invention. Examiner’s assumptions are not meant to add to or change the disclosed invention in any way. In order to expedite examination, Examiner has assumed the following: Claim 14 “wherein the first evaporation angle is an included angle formed between a first connecting line and the first surface, and the first connecting line connects a hole edge of the evaporation hole and an edge of the first opening; the second evaporation angles is an included angle formed between a second connecting line and the first surface, and the second connecting line connects the hole edge of the evaporation hole and the edge of *the first opening*”. See additional rejection below. Claim 15 “wherein the hole edge of the evaporation hole includes a first hole edge, the first hole edge corresponding to the first edge; the first connecting line connects a midpoint of the first hole edge and a midpoint of the first edge”. Claim 16 “wherein the hole edge of the evaporation hole includes a second hole edge, the second hole edge is adjacent to the first hole edge and forms a first intersection, and the second connecting line connects the first intersection and the first edge” Claim 14, line 6 refers to the second opening. However, previously in the claim and in claim 13 the feature at issue is related to the first opening. In order to expedite examination, Examiner has assumed the claim was meant to refer to the edge of the first opening and has examined accordingly. In all instances, clarification and/or correction is requested in line with current US practice(s). 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. 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. Claim(s) 13-17 is/are rejected under 35 U.S.C. 103 as being unpatentable over U.S. Patent Pub. No. 20180230585 to Bai. Regarding claim 13: In Figs. 4-6, e.g., Bai discloses a metal mask comprising: a metal body (20) having a first surface (S22) and a second surface (S21); a first etching part (hole H2) having a first opening (P2) located on the first surface; a second etching part (hole H1) having a second opening (P1) located on the second surface, wherein the second opening is smaller than the first opening; and an evaporation hole (i.e. smallest hole diameter where H1 and H2 meet) located between the first etching part and the second etching part, wherein the first etching part and the second etching part are communicate with each other at the evaporation hole; wherein the evaporation hole forms a first evaporation angle (Fig. 6, θ) and a second evaporation angle (not labeled, on opposite side from labeled θ) relative to the first opening, and a difference between the first evaporation angle and the second evaporation angle is less than 5 degrees. Bai teaches that the hole 201 (which is inclusive of the first etching part) is symmetrical with a vertical central axis OO’, such that the first evaporation angle and the second evaporation angle will be equal. Also, see, e.g., paras. 44-57. PNG media_image1.png 254 639 media_image1.png Greyscale With respect to claim 14, in Bai, the first evaporation angle is an included angle (θ is between P2 and other dashed line) formed between a first connecting line (and the first surface, and the first connecting line connects a hole edge of the evaporation hole and an edge of the first opening; the second evaporation angles is an included angle formed between a second connecting line and the first surface, and the second connecting line connects the hole edge of the evaporation hole and the edge of the first opening. Also see annotated figure. With respect to claim 15, in Bai, the hole edge of the evaporation hole includes a first hole edge, the first hole edge corresponding to the first edge; the first connecting line connects a midpoint of the first hole edge and a midpoint of the first edge. Also see annotated figure and Fig. 5. With respect to claim 16, in Bai et al., above, the second connection line is described in association with an opposing side of the first opening. However, additionally, the hole edge of the evaporation hole includes a second hole edge, the second hole edge is adjacent to the first hole edge and forms a first intersection, and the second connecting line connects the first intersection and the first edge. As noted above, hole 201 which is inclusive of evaporation hole has a same shape throughout (which appears to be substantially rectangular/maybe square). Since the first opening and second opening have intersections (i.e. corners), so will the evaporation hole, wherein the second connection line can be drawn from a corner of the first edge of the first opening to a corresponding corner of the evaporation hole. Regarding claim 17, Bai discloses the structure of a metal mask as claimed and as detailed above, i.e. including a metal body (20) having a first surface (S22) and a second surface (S21); a first etching part (hole H2) having a first opening (P2) located on the first surface that can be provided in a plurality; a second etching part (hole H1) having a second opening (P1) located on the second surface that can be provided in a plurality, and an evaporation hole (i.e. smallest hole diameter where H1 and H2 meet) located between the first etching part and the second etching part that can be provided in a plurality, wherein the first etching part and the second etching part are communicate with each other at the evaporation hole; wherein the evaporation hole forms a first evaporation angle (Fig. 6, θ) and a second evaporation angle (not labeled, on opposite side from labeled θ) relative to the first opening, and a difference between the first evaporation angle and the second evaporation angle is less than 5 degrees. Bai teaches that the hole 201 (which is inclusive of the first etching part) is symmetrical with a vertical central axis OO’, such that the first evaporation angle and the second evaporation angle will be equal. Also, see, e.g., paras. 44-57. Further, the claim is considered a product-by-process claim, wherein the courts have ruled the following: "[E]ven though product-by-process claims are limited by and defined by the process, determination of patentability is based on the product itself. The patentability of a product does not depend on its method of production. If the product in the product-by-process claim is the same as or obvious from a product of the prior art, the claim is unpatentable even though the prior product was made by a different process." In re Thorpe, 777 F.2d 695, 698, 227 USPQ 964, 966 (Fed. Cir. 1985). MPEP 2113. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Similar to Bai, USP Pubs. 2021/0140061; 2022/0325397; and 20240081120; and WO 2016171337 disclose similar metal masks with similar features, including acknowledging that it is well-known in the art that manufacturing tolerances for the metal masks will typically be minimized in order that they may be used to manufacture a product with the desired characteristics. Any inquiry concerning this communication or earlier communications from the examiner should be directed to KARLA MOORE whose telephone number is (571)272-1440. The examiner can normally be reached Monday-Friday, 9am-6pm EST. 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, PARVIZ HASSANZADEH can be reached at (571) 272-1435. 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. /KARLA A MOORE/Primary Examiner, Art Unit 1716
Read full office action

Prosecution Timeline

May 18, 2023
Application Filed
Apr 22, 2026
Non-Final Rejection — §103, §112 (current)

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Prosecution Projections

1-2
Expected OA Rounds
43%
Grant Probability
58%
With Interview (+14.6%)
4y 1m (~1y 1m remaining)
Median Time to Grant
Low
PTA Risk
Based on 767 resolved cases by this examiner. Grant probability derived from career allowance rate.

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