Prosecution Insights
Last updated: July 17, 2026
Application No. 18/584,100

FURNACE HUMIDIFICATION SYSTEM

Non-Final OA §112
Filed
Feb 22, 2024
Priority
Mar 01, 2023 — provisional 63/449,102
Examiner
ROE, JESSEE RANDALL
Art Unit
Tech Center
Assignee
Cleveland-Cliffs Steel Properties Inc.
OA Round
1 (Non-Final)
76%
Grant Probability
Favorable
1-2
OA Rounds
8m
Est. Remaining
84%
With Interview

Examiner Intelligence

Grants 76% — above average
76%
Career Allowance Rate
989 granted / 1297 resolved
+16.3% vs TC avg
Moderate +8% lift
Without
With
+7.8%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
53 currently pending
Career history
1339
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
70.2%
+30.2% vs TC avg
§102
1.9%
-38.1% vs TC avg
§112
14.8%
-25.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1297 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 . Status of the Claims Claims 1-20 are pending wherein claims 1-11 are currently under examination and claims 12-18 are withdrawn from further consideration pursuant 37 C.F.R. 1.142(b) as being drawn to a non-elected method for annealing steel utilizing a furnace humidification system and claims 19-20 are withdrawn from further consideration pursuant 37 C.F.R. 1.142(b) as being drawn to a continuous annealing line. Applicant’s election of claims 19-20 was made without traverse in the Response filed on May 28, 2026. 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 5-7 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. The phrase “high accuracy” in claims 5-7 is a relative term which renders the claim indefinite. The phrase “high accuracy” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. 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 11 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. In regard to claim 11, claim 1 indicates that there would be a water injecting system to feed liquid into the furnace and claim 11 also indicates that liquid water would be injected into the furnace and though a slight difference of words, it does not appear to be further limiting. 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. Allowable Subject Matter Claims 1-4 and 8-10 allowed. The following is a statement of reasons for the indication of allowable subject matter: In regard to claim 1, the closest prior art to Umlauf et al. (‘230) discloses a steel strip annealing furnace having a heating region and a soaking region with a dew point control system wherein the furnace would include an upper region and a lower region which would have an atmosphere injection system that may be coupled with a steam generator wherein the control system may further include two PID controllers configured in a cascaded loop configuration (abstract, [0001], [0009], and [0012]). However, instant claim 1 indicates that liquid is being injected directly into the furnace and this is different than Umlauf et al. (‘230) since steam is the gaseous state of water. Claims 5-7 would be allowable if rewritten 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 and to include all of the limitations of the base claim and any intervening claims. Claim 11 would be allowable if rewritten to overcome the rejection(s) under 35 U.S.C. 112(d) or 35 U.S.C. 112 (pre-AIA ), 4th paragraph, set forth in this Office action and to include all of the limitations of the base claim and any intervening claims. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Takahashii (‘851). Any inquiry concerning this communication or earlier communications from the examiner should be directed to Jessee Roe whose telephone number is (571)272-5938. The examiner can normally be reached Monday thru Friday 7:30 am to 4 pm. 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, Curt Mayes can be reached at 571-272-1234. 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. /JESSEE R ROE/Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Feb 22, 2024
Application Filed
Jun 10, 2026
Non-Final Rejection mailed — §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
76%
Grant Probability
84%
With Interview (+7.8%)
3y 1m (~8m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1297 resolved cases by this examiner. Grant probability derived from career allowance rate.

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