Prosecution Insights
Last updated: April 19, 2026
Application No. 18/190,802

CAUSTIC BASED MATERIAL BUILDING METHODS AND APPARATUS

Final Rejection §112
Filed
Mar 27, 2023
Examiner
SCHATZ, CHRISTOPHER T
Art Unit
1746
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Elkhorn Capital Holdings LLC
OA Round
2 (Final)
62%
Grant Probability
Moderate
3-4
OA Rounds
3y 9m
To Grant
89%
With Interview

Examiner Intelligence

Grants 62% of resolved cases
62%
Career Allow Rate
498 granted / 804 resolved
-3.1% vs TC avg
Strong +27% interview lift
Without
With
+26.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 9m
Avg Prosecution
40 currently pending
Career history
844
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
46.1%
+6.1% vs TC avg
§102
19.7%
-20.3% vs TC avg
§112
30.6%
-9.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 804 resolved cases

Office Action

§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 . FINAL REJECTION 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. Claim 1, 2, 4-8 and 10-17 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 written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. New amended independent claims 1, 13 and 17 recite the following: “wherein the curing occurs in a autoclave in saturated seam at a temperature of approximately 180 degrees C to 220 degrees C between 5 to 8 hours at a pressure of 140 psi to 350 psi.” This limitation, in each of the independent claims, is not supported by the specification as originally filed for several reasons. First, the “in saturated steam” limitation is only disclosed in para 30 (all text citations refer to applicant’s Publication - US 2024/0327283), which discloses curing “for eight (8) hours in an autoclave with saturated steam at 190 degrees C.” There is no disclosure of a pressure between “140 psi to 350 psi” when curing, nor when curing with saturated steam. Additionally, the curing time with saturated steam is disclosed 8 hours, not between 5-8 hours. Furthermore, the temperature is disclosed 190 Deg C, not between 180 to 220 deg C. Second, although the applicant cites para 27 (herein referred to as para 28, as such is the equivalent para in the above referenced Publication) as providing support, para 28 provides no such support. Para 28 recites “a drying process can occur. In one example embodiment, the drying process can include drying the mixture at 180 to 225 degrees C. for 4 to 8 hours at a pressure of 140 to 350 psi. As will be understood, other methods may be used and the above-identified method is but one example.” The forgoing is disclosure of a drying process, not a curing process. Finally, there is no disclosure of saturated steam in under the conditions recited in para 28. Claims 11 and 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. In claims 11 and 16, it’s not clear if, or how, the autoclave process recited in each claim is different than the autoclave process recited in claims 1 and 13, respectfully. The following is a quotation of 35 U.S.C. 112(d): (d) REFERENCE IN DEPENDENT FORMS.—Subject to subsection (e), a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. The following is a quotation of pre-AIA 35 U.S.C. 112, fourth paragraph: Subject to the following paragraph [i.e., the fifth paragraph of pre-AIA 35 U.S.C. 112], a claim in dependent form shall contain a reference to a claim previously set forth and then specify a further limitation of the subject matter claimed. A claim in dependent form shall be construed to incorporate by reference all the limitations of the claim to which it refers. Claim 12 is rejected under 35 U.S.C. 112(d) or pre-AIA 35 U.S.C. 112, 4th paragraph, as being of improper dependent form for failing to further limit the subject matter of the claim upon which it depends, or for failing to include all the limitations of the claim upon which it depends. Claim 12 does not include all the limitations of the claim upon which it depends because it recites a temperature outside of the range recited in claim 1. Applicant may cancel the claim(s), amend the claim(s) to place the claim(s) in proper dependent form, rewrite the claim(s) in independent form, or present a sufficient showing that the dependent claim(s) complies with the statutory requirements. Response to Arguments Applicant's arguments filed 11/21/25 have been fully considered but are moot in view of the new ground(s) of rejection. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to CHRISTOPHER T SCHATZ whose telephone number is (571)272-6038. The examiner can normally be reached Monday through Friday, 9-6. 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, Michael Orlando can be reached at 571-270-5038. 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. /CHRISTOPHER T SCHATZ/Primary Examiner, Art Unit 1746
Read full office action

Prosecution Timeline

Mar 27, 2023
Application Filed
Jun 24, 2025
Applicant Interview (Telephonic)
Jun 24, 2025
Examiner Interview Summary
Oct 15, 2025
Non-Final Rejection — §112
Nov 21, 2025
Response Filed
Jan 07, 2026
Final Rejection — §112
Apr 07, 2026
Applicant Interview (Telephonic)
Apr 07, 2026
Examiner Interview Summary

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12600074
DEVICE AND METHOD FOR MAKING CONCRETE EXPANSION JOINT INSERTS
2y 5m to grant Granted Apr 14, 2026
Patent 12593910
Method Of Manufacturing A Mouthpiece Toothbrush And Mouthpiece Toothbrush
2y 5m to grant Granted Apr 07, 2026
Patent 12595544
DEPOSITION APPARATUS
2y 5m to grant Granted Apr 07, 2026
Patent 12594696
Curing Composites Out-Of-Autoclave Using Induction Heating with Smart Susceptors
2y 5m to grant Granted Apr 07, 2026
Patent 12576578
THREE-DIMENSIONAL DECORATIVE PIECE AND METHOD OF PRODUCING THE SAME
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

AI Strategy Recommendation

Get an AI-powered prosecution strategy using examiner precedents, rejection analysis, and claim mapping.
Powered by AI — typically takes 5-10 seconds

Prosecution Projections

3-4
Expected OA Rounds
62%
Grant Probability
89%
With Interview (+26.8%)
3y 9m
Median Time to Grant
Moderate
PTA Risk
Based on 804 resolved cases by this examiner. Grant probability derived from career allow rate.

Sign in with your work email

Enter your email to receive a magic link. No password needed.

Personal email addresses (Gmail, Yahoo, etc.) are not accepted.

Free tier: 3 strategy analyses per month