Prosecution Insights
Last updated: August 16, 2026
Application No. 18/576,988

FIRE ENCLOSURE

Non-Final OA §102§103
Filed
Jan 05, 2024
Priority
Jul 08, 2021 — GB 2109882.7 +1 more
Examiner
JIMENEZ, OSCAR C
Art Unit
2896
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Viridian Solar Limited
OA Round
1 (Non-Final)
87%
Grant Probability
Favorable
1-2
OA Rounds
0m
Est. Remaining
96%
With Interview

Examiner Intelligence

Grants 87% — above average
87%
Career Allowance Rate
639 granted / 733 resolved
+19.2% vs TC avg
Moderate +9% lift
Without
With
+8.6%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
23 currently pending
Career history
747
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
46.6%
+6.6% vs TC avg
§102
45.0%
+5.0% vs TC avg
§112
6.9%
-33.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 733 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 . 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 1-3, 6, 10-13 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Refai (US 11,336,048). Regarding claim 1: Refai teaches an apparatus for an enclosure of a direct current connection of a photovoltaic solar panel (e.g. see Fig. 1 for an enclosure of a direct current connection, the photovoltaic solar panel limitations are considered intended use), the apparatus comprising: a housing 1 comprising at least two parts 2, 3 that, when joined together (see Figs. 6, 9), form a chamber 18 for surrounding mating direct current connectors with an air gap (see Fig. 6 for mating direct current connectors and an air gap located around its periphery), the housing comprising at least one support structure 54 for positioning the direct current connectors in a central part of the chamber (see Figs. 4a-6). Regarding claim 2: Refai teaches all the limitations of claim 1 and further teaches wherein the at least one support structure 54 is configured to contact at least one cable connected to one of the mating direct current connectors for causing the direct current connectors to be suspended in air in a central region of the chamber (see Fig. 5). Regarding claim 3: Refai teaches all the limitations of claim 2 and further teaches wherein the at least one support structure 54 is configured to inhibit lateral movement of the mating direct current connectors in at least one direction (see Fig. 5 and Col. 5, lines 4-9). Regarding claim 6: Refai teaches all the limitations of claim 1 and further teaches comprising at least one second port (e.g. port located between free ends 59; see Fig. 5) for air flow into and/or out of the chamber (e.g. see Fig. 5 wherein the port is configured to allow airflow). Regarding claim 10: Refai teaches all the limitations of claim 1 and further teaches wherein the housing comprises an upper part 3 and a lower part 2 that mate together to surround the mating direct current connectors (see Fig. 6). Regarding claim 11: Refai teaches all the limitations of claim 1 and further teaches wherein the housing 1 comprises a tubular section (at 18; Fig. 2) having two open ends (see Fig. 2), and two end caps (at 2, 5; Fig. 2) configured to cover the two open ends of the tubular section (see Fig. 2). Regarding claim 12: Refai teaches all the limitations of claim 1 and further teaches wherein the housing comprises a dielectric material (Col. 6, lines 54-55). Regarding claim 13: Refai teaches all the limitations of claim 1 and further teaches wherein the housing 1 has at least one outer surface configured to direct water towards an edge of the housing 1 (see rounded edges of the ends of the housing; see Fig. 6). 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. Claim 4 are rejected under 35 U.S.C. 103 as being unpatentable over Refai (US 11,336,048), in view of Dykhoff (US 6,521,834). Regarding claim 4: Refai teaches all the limitations of claim 1. Refai does not explicitly teach wherein the housing comprises an inner surface facing the chamber that is at least partially coated in an intumescent material. Dykhoff teaches comprising an inner surface that is at least partially coated in an intumescent material (Col. 5, lines 42-52). Therefore it would have been obvious to one of ordinary skill in the art to be able to modify the invention with the housing comprising an inner surface facing the chamber that is at least partially coated in an intumescent material as taught by Dykhoff into the apparatus of Refai in order to achieve the advantage of its protection and fire stopping capabilities. Claims 5, 7-8 are rejected under 35 U.S.C. 103 as being unpatentable over Refai (US 11,336,048), in view of Dahl (US 8,476,540). Regarding claim 5: Refai teaches all the limitations of claim 1. Refai does not explicitly teach at least one first port for providing water egress from the housing. Dahl teaches at least one first port 43 for providing water egress from a housing (see Fig. 1 and Col. 12, lines 46-60). Therefore it would have been obvious to one of ordinary skill in the art to be able to modify the invention with at least one first port for providing water egress from the housing as taught by Dahl into the apparatus of Refai in order to achieve the advantage of removing unwanted moisture from the housing. Regarding claim 7: Refai, in view of Dahl, teaches all the limitations of claim 5 and further teaches wherein the at least one first port 43 and/or at least one second port provides an entrance or exit point to a labyrinthine path for exit of water and/or entry of air and/or exit of air (see Fig. 1 and Col. 12, lines 46-60 of Dahl). Regarding claim 8: Refai, in view of Dahl, teaches all the limitations of claim 5 and further teaches wherein the at least one first 43 and/or at least one second port is located at a distal end of at least one part of the housing (see Fig. 1 and Col. 12, lines 46-60 of Dahl). Claim 9 is rejected under 35 U.S.C. 103 as being unpatentable over Refai (US 11,336,048), in view of Dahl (US 8,476,540), further in view of Dykhoff (US 6,521,834). Regarding claim 9: Refai, in view of Dal, teaches all the limitations of claim 5. Refai does not explicitly teach wherein the at least one first port and/or at least one second port comprises a respective inner surface that is at least partially coated in an intumescent material. Dykhoff teaches at least partially coated in an intumescent material (Col. 5, lines 42-52). Therefore it would have been obvious to one of ordinary skill in the art to be able to modify the invention with the at least one first port and/or at least one second port comprises a respective inner surface that is at least partially coated in an intumescent material as taught by Dykhoff into the apparatus of Refai in order to achieve the advantage of its protection and fire stopping capabilities. Claims 14-15, 17-21 are rejected under 35 U.S.C. 103 as being unpatentable over Refai (US 11,336,048), in view of Dupuis (US 2017/0033546). Regarding claim 14: Refai teaches all the limitations of claim 1. Refai does not explicitly teach an assembly comprising: the apparatus of claim 1, and an outer housing configured to receive the apparatus in an inner cavity defined by an inner surface of the outer housing. Dupuis teaches an assembly (Fig. 1D) comprising an apparatus 120, and an outer housing 140 configured to receive the apparatus in an inner cavity defined by an inner surface of the outer housing (see Fig. 2A). Therefore it would have been obvious to one of ordinary skill in the art to be able to modify the invention with an assembly comprising: the apparatus of claim 1, and an outer housing configured to receive the apparatus in an inner cavity defined by an inner surface of the outer housing as taught by Dupuis into the apparatus of Refai in order to achieve the advantage of comprising an outer housing for holding the apparatus in a desired position. Regarding claim 15: Refai, in view of Dupuis, teaches all the limitations of claim 14 and Dupuis further teaches wherein the outer housing 140 is configured to cover at least one port (at 129a; Fig. 1D) provided in the apparatus (see Fig. 1A of Dupuis). Regarding claim 17: Refai, in view of Dupuis, teaches all the limitations of claim 14 and Dupuis further teaches wherein the outer housing 140 comprises a bracket 142 configured to attach to a support structure (e.g. via opening 151; see Fig. 3B and Para. 0043 of Dupuis). Regarding claim 18: Refai, in view of Dupuis, teaches all the limitations of claim 14 and Dupuis further teaches further comprising at least one split grommet 150 configured to be located in the outer housing for receiving a direct current cable connected to at least one of the mating direct current connectors (see Fig. 4 of Dupuis). Regarding claim 19: Refai, in view of Dupuis, teaches all the limitations of claim 14 and Dupuis further teaches wherein the outer housing is configured to hold the at least two parts of the housing together (see Figs. 1A-1D). Regarding claim 20: Refai, in view of Dupuis, teaches all the limitations of claim 14 and Dupuis further teaches wherein the outer housing has at least one outer surface configured to direct water to an edge of the outer housing (see Fig. 1A for shape of outer housing and configured to direct water towards the edges). Regarding claim 21: Refai, in view of Dupuis, teaches all the limitations of claim 14 and Dupuis further teaches further comprising wherein the mating direct current connectors having have a rating defined by a manufacturer of the direct current connectors, and wherein a size of the air gap is selected to enable the direct current connectors to operate at or below said rating (see Fig. 6 of Refai for connectors mated to each other and gaps of various sizes). Claim 16 is rejected under 35 U.S.C. 103 as being unpatentable over Refai (US 11,336,048), in view of Dupuis (US 2017/0033546), further in view of Dykhoff (US 6,521,834). Regarding claim 16: Refai, in view of Dupuis, teaches all the limitations of claim 14. Refai does not explicitly teach wherein the inner surface of the outer housing is at least partially coated with an intumescent material. Dykhoff teaches at least partially coated in an intumescent material (Col. 5, lines 42-52). Therefore it would have been obvious to one of ordinary skill in the art to be able to modify the invention with the inner surface of the outer housing is at least partially coated with an intumescent material as taught by Dykhoff into the apparatus of Refai in order to achieve the advantage of its protection and fire stopping capabilities. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Please see PTO-892 for pertinent prior art, the following references being of particular relevance: Marsac (US 2005/0167147) teaches an enclosure of protecting a cable connection within and comprises a central chamber and air gaps around the connection; Limber (US 2004/0097120) teaches an enclosure for an extension cord and wherein the enclosure comprises apertures for airflow; House (US 4,643,505) teaches a housing for plugs and comprises a support structure for locating and holding the connection within and further comprises air gaps; Any inquiry concerning this communication or earlier communications from the examiner should be directed to OSCAR C JIMENEZ whose telephone number is (571)270-0272. The examiner can normally be reached Monday-Friday 8am-5pm. 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, Jessica Han can be reached at (571) 272-2078. 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. /OSCAR C JIMENEZ/Primary Examiner, Art Unit 2896
Read full office action

Prosecution Timeline

Jan 05, 2024
Application Filed
May 13, 2026
Non-Final Rejection mailed — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12706418
PLUGGABLE OPTICAL MODULE
3y 1m to grant Granted Aug 11, 2026
Patent 12706421
ELECTRICAL CONNECTOR AND CONNECTOR DEVICE
1y 0m to grant Granted Aug 11, 2026
Patent 12700693
MODULAR CONNECTOR WITH IMPROVED LOCKING FEATURES AND ASSEMBLY METHOD THEREOF
3y 1m to grant Granted Aug 04, 2026
Patent 12700691
FLEXIBLE HIGH-POWER RF LINE WITH JOINTS
1y 5m to grant Granted Aug 04, 2026
Patent 12689158
ELECTRICAL CONNECTOR WITH GRADUAL PLUGGING FEEL
3y 0m to grant Granted Jul 21, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

Strategy Recommendation AI-generated — please review before filing

Get a prosecution strategy drawn from examiner precedents, rejection analysis, and claim mapping.
Typically takes 5-10 seconds — AI-generated, attorney review required before filing

Prosecution Projections

1-2
Expected OA Rounds
87%
Grant Probability
96%
With Interview (+8.6%)
1y 11m (~0m remaining)
Median Time to Grant
Low
PTA Risk
Based on 733 resolved cases by this examiner. Grant probability derived from career allowance 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