Prosecution Insights
Last updated: October 04, 2026
Application No. 19/014,201

PREFABRICATED TUNNEL PRESTRESSED ANCHOR AND MANUFACTURING METHOD AND USE METHOD THEREFOR

Non-Final OA §112
Filed
Jan 08, 2025
Priority
Dec 08, 2022 — CN 202211572033.4 +1 more
Examiner
FIORELLO, BENJAMIN F
Art Unit
Tech Center
Assignee
Cccc Second Highway Consultants Co. Ltd.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allowance Rate
843 granted / 1140 resolved
+13.9% vs TC avg
Moderate +7% lift
Without
With
+7.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
28 currently pending
Career history
1170
Total Applications
across all art units

Statute-Specific Performance

§101
0.6%
-39.4% vs TC avg
§103
47.9%
+7.9% vs TC avg
§102
20.3%
-19.7% vs TC avg
§112
24.0%
-16.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1140 resolved cases

Office Action

§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 . Information Disclosure Statement The information disclosure statement filed 01/08/2025 fails to comply with 37 CFR 1.98(a)(2), which requires a legible copy of each cited foreign patent document; each non-patent literature publication or that portion which caused it to be listed; and all other information or that portion which caused it to be listed. The cross-off reference on the IDS has not been provided. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-10 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the enablement requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to which it pertains, or with which it is most nearly connected, to make and/or use the invention. Claim 1 contains subject matter which was not described in the specification in such a way as to enable one skilled in the art to make and/or use the invention without undue experimentation. Specifically, the claim states “when the filler material is electrified, a structure of the filler material is destroyed”. The specification lacks overall direction or guidance so as to arrive at an implementation that is capable of performing the recited actions. The specification vaguely describes the filler material as “an organic material with fluidity, compressive strength after solidification, and bond strength to the anchor rod satisfying preset conditions” with zero examples of any materials. Furthermore, there is no overall direction or guidance directed towards the electrifying (i.e. voltage/current) and how the electrifying destroys the filler material. Therefore, undue experimentation is required. See MPEP 2164.01. A conclusion of lack of enablement means that, based on the evidence regarding each of the above factors, the specification, at the time the application was filed, would not have taught one skilled in the art how to make and/or use the full scope of the claimed invention without undue experimentation. In re Wright, 999 F.2d 1557, 1562, 27 USPQ2d 1510, 1513 (Fed. Cir. 1993). Claims 2-10 depend upon claim 1. 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 1-10 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. With regard to claim 1, the claims states “when the filler material is electrified, a structure of the filler material is destroyed”. The term filler material is described as merely an organic material within the specification, which is vague and can potentially include an almost unlimited number of materials. The metes and bounds of the claim cannot be ascertained. Claims 2-10 depend upon claim 1. Allowable Subject Matter Claims 1-10 would be allowable if rewritten or amended to overcome the rejection(s) under 35 U.S.C. 112(a) and 35 U.S.C. 112(b) set forth in this Office action. The following is a statement of reasons for the indication of allowable subject matter: the cited prior art, either alone or in any reasonable combination, fails to teach or suggest all the limitations of the independent claim(s). Prestressed tunnel anchors and the use of electricity therein are known such as those taught by von Allmen et al. (5,707,181); Spang et al. (4,652,179); and Toland (4,068,481). These anchors use electrical means to heat the steel tension members (von Allmen), as an igniter for chemical reactions (Spang), and to heat grouting material (Toland). However, the cited prior art lacks a filler material that when electrified, a structure of the filler material is destroyed in combination with steel casing with holes in the steel casing and sleeves arranged at two ends of the steel casing as required by the independent claim(s) and it would not have been obvious to one of ordinary skill in the art at the time the invention was filed to modify the prior art to achieve applicant’s invention without the benefit of hindsight and applicant’s own disclosure. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. See PTO-892. Any inquiry concerning this communication or earlier communications from the examiner should be directed to BENJAMIN F FIORELLO whose telephone number is (571)270-7012. The examiner can normally be reached Mon-Fri 8:00AM-4:30PM 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, Amber Anderson can be reached at (571)270-5281. 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. /BENJAMIN F FIORELLO/Primary Examiner, Art Unit 3678 BF 08/06/2026
Read full office action

Prosecution Timeline

Jan 08, 2025
Application Filed
Aug 11, 2026
Non-Final Rejection mailed — §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
74%
Grant Probability
81%
With Interview (+7.4%)
2y 2m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1140 resolved cases by this examiner. Grant probability derived from career allowance rate.

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