Prosecution Insights
Last updated: April 19, 2026
Application No. 19/296,373

SOLAR SIGN

Non-Final OA §102§103
Filed
Aug 11, 2025
Examiner
EIDE, ERIC T
Art Unit
2875
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Optoglo Inc.
OA Round
1 (Non-Final)
66%
Grant Probability
Favorable
1-2
OA Rounds
1y 11m
To Grant
89%
With Interview

Examiner Intelligence

Grants 66% — above average
66%
Career Allow Rate
283 granted / 427 resolved
-1.7% vs TC avg
Strong +23% interview lift
Without
With
+22.8%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
14 currently pending
Career history
441
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
52.4%
+12.4% vs TC avg
§102
29.7%
-10.3% vs TC avg
§112
15.9%
-24.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 427 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. Claim(s) 1, 3, 5, 8, 9, 11, 14, 15, and 17-20 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Grosser, III et al. (US 2015/0269876 Hereinafter Grosser). Regarding claim 1, Grosser discloses a system comprising: a frame (34, Fig. 2) of a solar-powered sign (18, Fig. 3) supporting a solar sign sheet (18, Fig. 3); a solar panel (42, Figs. 2 and 3) disposed relative to the frame; a light source (14, Figs. 2 and 3) configured to illuminate the solar sign sheet (Figs. 1-3); and a battery (48, Paragraph 0024) configured to store power generated via the solar panel and provide power to control circuitry (controller, Paragraph 0024) configured to control the light source. Regarding claim 3, Grosser discloses the solar panel being disposed relative to the frame includes the solar panel being located on an exterior of the frame (Fig. 2). Regarding claim 5, Grosser discloses the solar-powered sign is a dual-sided solar-powered sign (18 and 20, Fig. 2), the system further comprising: a second solar sign sheet (20, Fig. 2 and 3) disposed relative to the first solar sign sheet. Regarding claim 8, Grosser discloses a system comprising: a first light guide (18, Fig. 2) configured to receive light from a first set of internal light sources (half of 14, Figs. 2 and 3) to illuminate a first surface of a dual-sided solar-powered sign; a second light guide (20, Fig. 3) configured to receive light from a second set of internal light sources (the other half of 14, Fig. 3) to illuminate a second surface (20, Fig. 3) of the dual-sided solar-powered sign; a solar panel (42, Fig. 2) configured to capture light; and a battery (48, Paragraph 0024) configured to store power generated via the solar panel and provides the power to at least one of the first set of internal light sources or the second set of internal light sources (Fig. 3, Paragraph 0025). Regarding claim 9, Grosser discloses the solar panel is located on an exterior of a frame (34, Fig. 2) of the sign. Regarding claim 11, Grosser discloses control circuitry (controller, Paragraph 0024) configured to control the first set of internal light sources and the second set of internal light sources (Paragraph 0025). Regarding claim 14, Grosser discloses a method for illuminating content, the method comprising: collecting light using a solar panel of a solar-powered sign, wherein power generated via the solar panel is stored in a battery of the solar-powered sign (Paragraph 0025); monitoring ambient light conditions of an environment in which the solar-powered sign is location to determine if a threshold is met (Paragraph 0025); upon determining that the threshold is met, turning on an internal light source of the solar-powered sign (Paragraph 0025); determining whether a predetermined time period has elapsed; and turning off the internal light source (Paragraph 0025). Regarding claim 15, Grosser discloses adjusting a brightness of the internal light source over the predetermined time period (Paragraph 0025, Specifically it goes from off to full light and back to off). Regarding claim 17, Grosser discloses identifying an intermittent period of low ambient light; and turning off the internal light source (Paragraph 0025). Regarding claim 18, Grosser discloses resetting the panel to a monitoring state (Paragraph 0025). Regarding claim 19, Grosser discloses the solar powered sign is a dual-sided solar-powered solar sign (Fig. 3). Regarding claim 20, Grosser discloses the solar panel is located on an exterior of a frame (34, Figs. 2 or 3) of the solar-powered sign. 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(s) 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Grosser, III et al. (US 2015/0269876 Hereinafter Grosser) in view of Donahue (US 2019/0280139). Regarding claim 2, Grosser teaches the solar sign sheet comprises an internal light guide. Donahue teaches the solar sign sheet comprises an outer diffusion film (122, Paragraph 0023) and an internal light guide (123, Paragraph 0023). It would have been obvious to one of ordinary skill in the art before the earliest effective filing date to have included the outer diffusion film of Donahue to the light guide of Grosser, in order to provide a desired light distribution and so an image as required for a given application. Claim(s) 4 and 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over Grosser, III et al. (US 2015/0269876 Hereinafter Grosser) in view of Blach (US 6215409). Regarding claims 4 and 10, Grosser fails to teach the light source is an external light source. Blach teaches the light source (25, Figs. 1-3) is an external light source electrically coupled to the control circuitry and configured to receive power via the battery (Fig. 4). It would have been obvious to one of ordinary skill in the art before the earliest effective filing date to have included the light source of Blach outside the frame of Grosser, in order to provide additional lighting to the display and an alternative illumination method as desired for a given application. Claim(s) 6, 7, 12, 13, and 16 is/are rejected under 35 U.S.C. 103 as being unpatentable over Grosser, III et al. (US 2015/0269876 Hereinafter Grosser) in view of Sadon (US 2009/0229154). Regarding claims 6 and 12, Grosser teaches the control circuity is configured to: determine whether a predetermined time period has elapsed; and turn off the light source (Paragraph 0025). Sadon teaches monitor ambient light conditions by monitoring a voltage of the solar panel (14, Fig. 2, Paragraph 0037) to determine if a threshold is met; upon determining the threshold is met, turn on the light source (Paragraph 0037). It would have been obvious to one of ordinary skill in the art before the earliest effective filing date to have included having the lights of Grosser turning on be due to low voltage from the solar panel as taught by Sadon, in order to reduce costs of required elements and to reduce what can go wrong with the system. Regarding claims 7 and 13, Grosser teaches the control circuitry is further configured to: adjust a brightness of the light source over the predetermined time period (Paragraph 0025, Specifically it goes from off to full light and back to off). Regarding claim 16, Grosser fails to teach monitoring ambient light conditions includes monitoring a voltage of the solar panel to determine ambient light conditions. Sadon teaches monitor ambient light conditions by monitoring a voltage of the solar panel (14, Fig. 2, Paragraph 0037) to determine ambient light conditions (Paragraph 0037). It would have been obvious to one of ordinary skill in the art before the earliest effective filing date to have included having the lights of Grosser turning on be due to low voltage from the solar panel as taught by Sadon, in order to reduce costs of required elements and to reduce what can go wrong with the system. Relevant Prior Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Homrighous et al. (US 2014/0092586) teaches a two sided solar sign. Laforce et al. (US 2017/0301268) teaches a solar light up sign. Gilbert et al. (US 2016/0072430) teaches a light up sign with diffuser. Castlen (US 20240/0071265) teaches a sign with external solar panel. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ERIC T EIDE whose telephone number is (571)272-7405. The examiner can normally be reached M-F 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, Jong-Suk (James) Lee can be reached at (571)272-7044. 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. /ERIC T EIDE/ Examiner, Art Unit 2875
Read full office action

Prosecution Timeline

Aug 11, 2025
Application Filed
Feb 12, 2026
Non-Final Rejection — §102, §103 (current)

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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
66%
Grant Probability
89%
With Interview (+22.8%)
1y 11m
Median Time to Grant
Low
PTA Risk
Based on 427 resolved cases by this examiner. Grant probability derived from career allow rate.

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