Prosecution Insights
Last updated: April 19, 2026
Application No. 18/257,638

FUSE ASSEMBLY OF A SURGE ARRESTER INDICATOR

Non-Final OA §102§103
Filed
Jun 15, 2023
Examiner
LEE, KYUNG S
Art Unit
2831
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Siemens Energy Global GmbH & Co. Kg
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
2y 2m
To Grant
92%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allow Rate
984 granted / 1129 resolved
+19.2% vs TC avg
Minimal +5% lift
Without
With
+4.8%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
33 currently pending
Career history
1162
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
39.2%
-0.8% vs TC avg
§102
41.4%
+1.4% vs TC avg
§112
10.7%
-29.3% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1129 resolved cases

Office Action

§102 §103
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 . Election/Restrictions Restriction dated September 17, 2025 is withdrawn. All claims, claims 16-32 are examined. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claims 16-17, 19-21, 23-24, 27, 29 and 32 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Boese et al. (US Pat. 10,109,399). Regarding claims 16 and 17, Boese teaches a protective assembly of a surge arrester indicator (housing for surge arrester disconnector unit; see at least the “Summary of the Invention” and figs. 1-4), wherein the protective assembly has a fireproof and a shatterproof receptacle for the surge arrester indicator (The housing, comprising of an inner housing 15 and an outer housing 16, prevents sparks and hot particles which may ignite a fire in the environment/surrounding of the disconnector device from leaving the housing. Further, gas from the disconnection cartridge escapes the receptacle, however, the receptacle stays intact. See at least col. 3, lines 7-15.). Regarding claims 19, 21 and 24, Boese teaches the protective assembly of the surge arrester indicator, wherein said receptacle has an access opening (open access shown in fig. 1) and a closure element (The receptacle 14 is two-part receptacle [see fig. 3], wherein one of the part is the closure element that is forced-fitted and/or pressed fitted “by bolt-nut connection, by fusion, riveting or other connection means” to close the access opening. See col. 6, line 59 to col. 7, line 2) for closing said access opening, and wherein said closure element is configured to secure said access opening with a force-fit; and the closure element is secured by way of a bolt that traverses the receptacle at least partially (bolt-nut connection is used to secure the closure element [the second part of the receptacle] the bolt traversing through the flange 18 of the receptacle; see col. 6, line 59 to col. 7, line 2). Regarding claim 20, the receptacle (14) is substantially delimited by hollow cylindrical walls (see fig. 3). Regarding claim 23, the surge arrester indicator (moving indicator 40 held inside the receptacle by the retaining rim 50; see fig. 1) is affixed to the closure element. Regarding claims 27 and 29, Boese teaches the protective assembly of the surge arrester indicator, wherein the access opening is a first access opening and the closure is a first closure element (outer receptacle 16 possesses the first access opening and the first closure; see figs. 1 and 3), and wherein the receptacle has a second access opening and a second closure element (the inner receptacle 15 possesses the second access opening and the second closure), and wherein the first and second closure elements are clamped to one another in a force-fitting fashion (the closures are forced-fitted and/or pressed fitted “by bolt-nut connection, by fusion, riveting or other connection means” to close the access opening. See col. 6, line 59 to col. 7, line 2), forming a multiple layered receptacle. Regarding claim 32, Boese teaches the receptacle being transportable (col. 6, lines 1-5) that an opening 55 (see fig. 1) is between 0.1 mm to 5 mm (see col. 8, lines 33-42). Claims 16, 18-19, 22 and 28 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kozorezov et al. (US Pat. 3,848,100). Regarding claims 16 and 18, Kozorezov teaches a protective assembly of a surge arrester indicator, wherein the protective assembly has a fireproof and soundproof receptacle for the surge arrester indicator (hermetically sealed steel receptacle 4; see fig. 2 and col. 2, lines 54-59 and claim 1). Regarding claim 19, Kozorezov teaches the receptacle having an access opening (closed by closure 9) and a closure element (9) for closing the access opening, and wherein the closure element (9) is configured to secure the access opening with a force fit (secure by bolt 10). Regarding claim 22, Kozorezov teaches the closure element (9) having a metal seal seat (clamp nut 12, the copper plug 16 and aluminum tube 1 are hermetically sealed (col. 2, line 66 to col. 3, line 13). Regarding claim 28, Kozorezov teaches the closure element (9) having a receiving groove (by reference number 11) for receiving therein a body edge delimiting the access opening (the groove for joining access opening and the closure element). Claim Rejections - 35 USC § 103 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. Claims 30 and 31 are rejected under 35 U.S.C. 103 as being unpatentable over Kozorezov in view of Raudabaugh (US Pat. 5,138,517). Regarding claim 30, Kozorezov teaches the claimed invention (including hermetically sealed steel receptacle 4) except for the receptacle further having a second layer containing ceramic fiber. Raudabaugh teaches the use of ceramic fiber for the purpose of reinforcing the receptacle to provide a shatterproof enclosure (see col. 3, line 60 to col. 4, line 8). It would have been obvious to one skilled in the art before the effective filing date of the claimed invention to combine the teachings of Raudabaugh with Kozorezov, since reinforcing the receptacle with ceramic fiber as taught Raudabaugh increases the structural strength of the protection assembly of Kozorezov. Allowable Subject Matter Claims 25 and 26 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Regarding claim 25, the prior art does not teach or suggest the surge arrester indicator being connected to the bolt. Claim 26 depends on claim 25. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to KYUNG S LEE whose telephone number is (571)272-1994. The examiner can normally be reached 7AM-3PM M-F. 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, Renee Luebke can be reached at 571-272-2009. 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. /KYUNG S LEE/Primary Examiner, Art Unit 2833
Read full office action

Prosecution Timeline

Jun 15, 2023
Application Filed
Jan 10, 2026
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603198
SURFACE-MOUNTED POLYMER PCT OVERCURRENT PROTECTION ELEMENT HAVING SMALL PACKAGE SIZE
2y 5m to grant Granted Apr 14, 2026
Patent 12592328
RESISTOR TRIMMING DEVICE AND ELECTRONIC DEVICE
2y 5m to grant Granted Mar 31, 2026
Patent 12586698
DEVICES AND METHODS RELATED TO MOV HAVING MODIFIED EDGE
2y 5m to grant Granted Mar 24, 2026
Patent 12580104
SHUNT RESISTOR AND SHUNT RESISTANCE DEVICE
2y 5m to grant Granted Mar 17, 2026
Patent 12580105
MULTILAYER VARISTOR AND METHOD FOR MANUFACTURING THE SAME
2y 5m to grant Granted Mar 17, 2026
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
87%
Grant Probability
92%
With Interview (+4.8%)
2y 2m
Median Time to Grant
Low
PTA Risk
Based on 1129 resolved cases by this examiner. Grant probability derived from career allow rate.

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