Prosecution Insights
Last updated: April 19, 2026
Application No. 18/264,342

CASTING-ROLLING INTEGRATED PLANT AND METHOD FOR PRODUCING A HOT STRIP WITH A FINAL THICKNESS < 1.2 MM ON THE CASTING-ROLLING INTEGRATED PLANT

Non-Final OA §112
Filed
Aug 04, 2023
Examiner
LIANG, ANTHONY M
Art Unit
1734
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Primetals Technologies Austria GmbH
OA Round
1 (Non-Final)
83%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
93%
With Interview

Examiner Intelligence

Grants 83% — above average
83%
Career Allow Rate
548 granted / 659 resolved
+18.2% vs TC avg
Moderate +10% lift
Without
With
+9.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
37 currently pending
Career history
696
Total Applications
across all art units

Statute-Specific Performance

§101
0.7%
-39.3% vs TC avg
§103
44.0%
+4.0% vs TC avg
§102
7.6%
-32.4% vs TC avg
§112
33.9%
-6.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 659 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 . Claim Objections Claim 8 is objected to because of the following informalities: In line 5, the reference character “(1a)” should be deleted. Appropriate correction is required. Claims 8-15 are objected to under 37 CFR 1.75(c) as being in improper form because a multiple dependent claim should refer to other claims in the alternative only and cannot depend from any other multiple dependent claim. See MPEP § 608.01(n). Accordingly, claims 8-15 have not been further treated on the merits. 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. Regarding claims 1 and 3, the phrase "preferably" renders the claim indefinite because it is unclear whether the limitation(s) following the phrase are part of the claimed invention. See MPEP § 2173.05(d). Claims 2 and 4-7 are dependent upon claim 1 and are thus also rejected for the same reasons. Note that claims 8-15, which have not been further treated on the merits, also contain phases such as “preferably,” “in particular,” and “particularly preferably” throughout, which are also unclear. Allowable Subject Matter Claims 1-7 would be allowable if rewritten or amended 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. As allowable subject matter has been indicated, applicant's reply must either comply with all formal requirements or specifically traverse each requirement not complied with. See 37 CFR 1.111(b) and MPEP § 707.07(a). The following is a statement of reasons for the indication of allowable subject matter: Regarding claim 1, the prior art fails to disclose or fairly suggest the combined casting and rolling installation as recited. In particular, the closest prior art, Kircher (DE 19732538A1), wherein an English machine translation is used and cited herein, teaches/renders obvious the instantly claimed features of a combined casting and rolling installation for producing a hot-rolled strip with a final thickness < 1.2 mm, comprising at least a first continuous casting installation and a second continuous casting installation, where each continuous casting installation casts liquid steel into slabs, the rolling installation comprising a rough rolling mill for rough rolling the heated slabs to form a rough-rolled strip, a coil box for winding up the rough-rolled strip to form a coil and for unwinding the rough-rolled strip, a joining device for connecting, without filler material, a foot of a leading rough-rolled strip to a head of a trailing rough-rolled strip to form an endless rough-rolled strip, a multi-stand finishing rolling mill for finish rolling the endless rough-rolled strip to form a finished strip with the final thickness, a cooling section for cooling the finished strip to form the hot-rolled strip, and a plurality of coiling devices for coiling the hot-rolled strip, wherein the roughing rolling mill, the coil box, the joining device, the multi-stand finishing rolling mill, the cooling section, and the coiling devices of the rolling installation are arranged in-line one behind the other, and the first continuous casting installation has a first offset in a first direction with respect to the rolling installation (Abstract, [0001]-[0020], Fig. 1). However, Kircher does not teach or adequately suggest wherein the combined casting and rolling installation comprises a slab manipulator for conveying the slabs from the continuous casting installations into a walking beam furnace, the walking beam furnace conveying the slabs from the slab manipulator into a rolling installation and heating the slabs to rolling temperature, wherein slabs from the first continuous casting installation and slabs from the second continuous casting installation pass completely through the walking beam furnace and are uniformly heated in the process, and wherein the second continuous casting installation has a second offset in the first direction with respect to the rolling installation, as required by claim 1. Thus, claim 1 is distinct over the teachings of the prior art. Claims 2-7 further limit the subject matter of claim 1 and are thus also distinct over the teachings of the prior art. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ANTHONY M LIANG whose telephone number is (571)272-0483. The examiner can normally be reached M-F: 9:00am-5:00pm. 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, Jonathan Johnson can be reached at (571)272-1177. 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. /ANTHONY M LIANG/Primary Examiner, Art Unit 1734
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Prosecution Timeline

Aug 04, 2023
Application Filed
Nov 01, 2025
Non-Final Rejection — §112 (current)

Precedent Cases

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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
83%
Grant Probability
93%
With Interview (+9.9%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 659 resolved cases by this examiner. Grant probability derived from career allow rate.

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