Prosecution Insights
Last updated: May 29, 2026
Application No. 18/039,406

COATING FOR VEHICLE LAVATORY WITH LUMINESCING VISUAL INDICATION OF SANITIZATION

Final Rejection §103
Filed
May 30, 2023
Priority
Jan 19, 2021 — nonprovisional of PCTUS2021013868 +1 more
Examiner
SEGED, NEBYATE SAMUEL
Art Unit
1758
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Safran Cabin Inc.
OA Round
2 (Final)
31%
Grant Probability
At Risk
3-4
OA Rounds
7m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants only 31% of cases
31%
Career Allowance Rate
8 granted / 26 resolved
-34.2% vs TC avg
Strong +47% interview lift
Without
With
+46.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 7m
Avg Prosecution
28 currently pending
Career history
66
Total Applications
across all art units

Statute-Specific Performance

§103
84.7%
+44.7% vs TC avg
§102
7.2%
-32.8% vs TC avg
§112
1.8%
-38.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 26 resolved cases

Office Action

§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 Applicant’s election without traverse of claims 1-12 in the reply filed on 10/13/2025 is acknowledged. Claims 13-20 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 10/13/2025. 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. The factual inquiries for establishing a background for determining obviousness under 35 U.S.C. 103 are summarized as follows: 1. Determining the scope and contents of the prior art. 2. Ascertaining the differences between the prior art and the claims at issue. 3. Resolving the level of ordinary skill in the pertinent art. 4. Considering objective evidence present in the application indicating obviousness or nonobviousness. This application currently names joint inventors. In considering patentability of the claims the examiner presumes that the subject matter of the various claims was commonly owned as of the effective filing date of the claimed invention(s) absent any evidence to the contrary. Applicant is advised of the obligation under 37 CFR 1.56 to point out the inventor and effective filing dates of each claim that was not commonly owned as of the effective filing date of the later invention in order for the examiner to consider the applicability of 35 U.S.C. 102(b)(2)(C) for any potential 35 U.S.C. 102(a)(2) prior art against the later invention. Claim(s) 1-2, 4-7, and 9 are rejected under 35 U.S.C. 103 as being unpatentable over Childress et al. (US 20160220716 A1) (cited in Applicant’s IDS dated 06/05/2023) in view of Burnell-Jones (hereinafter "Burnell") (US 20030085383 A1) (cited in Applicant’s IDS dated 06/05/2023). Regarding claim 1, Childress teaches a vehicle lavatory monument assembly and disinfection system [0007] comprising: an enclosure that includes a plurality of walls that cooperate to define a lavatory interior, wherein a door is positioned on one of the plurality of walls (Figs 2 and 3, depict the lavatory with 4 walls, and a door on one of the walls ([0009], [0035-0036]), a first component positioned in the lavatory interior ([0033], reflective material 124 may be a reflective coating 125 applied to plurality of surfaces 128 inside lavatory [0036] = surfaces understood to be components), wherein the first component includes a first coating on an outer surface thereof [0033]. Childress does not teach wherein the first component includes a first visual indication coating on an outer surface thereof, wherein the first visual indication coating includes at least a first excitation additive, wherein the first excitation additive is configured to illuminate when irradiated by a first light that includes light waves within a predetermined wavelength range. One having ordinary skill in the art would be concerned with alerting users to the presence of harmful UV light during laboratory sterilization, motivating one towards Burnell. Burnell teaches a phosphorescent resin which may be used to coat an article (para [0032]), wherein the coating is a visual indication coating (coating has luminescent properties, [0035]), wherein the first visual indication coating includes at least a first excitation additive [0033], and wherein the first excitation additive is configured to illuminate when irradiated by a first light that includes light waves within a predetermined wavelength range [0033]. Burnell is considered analogous to the claimed invention since both are drawn to the photochromatic coating arts. Therefore, it would have been obvious to one having ordinary skill in the art prior to the effective filing date of the claimed invention to modify the coating as taught by Childress to include the coating as taught by Burnell since Burnell teaches the coating to be used within a vehicle for emergency illumination [0054] and such coating would prevent users from entering an area being sterilization by UV light as a visual indication of sterilization would be provided and this involves the combination of elements to yield a predictable result with a reasonable expectation of success. See MPEP 2143(I)(A). Regarding claim 2, Modified Childress teaches the vehicle lavatory monument assembly of claim 1, the first excitation additive is a first fluorescing additive (Burnell, [0143]). Regarding claim 4, Modified Childress iteaches the vehicle lavatory monument assembly of claim 2, wherein the the first visual indication coating includes a second excitation additive, and wherein the second excitation additive is a first phosphorescing additive (Burnell, [0033]). Regarding claim 5, Modified Childress teaches the vehicle lavatory monument assembly of claim 1, wherein the first excitation additive is a phosphorescing additive (Burnell, [0033]). Regarding claim 6, Modified Childress teaches the vehicle lavatory monument assembly of claim 5, wherein the phosphorescing additive is present in the first visual indication coating in a predetermined pattern (Burnell, [0054], teaches an application of the coating to be used for signage which is understood to be a predetermined pattern of words and symbols). Regarding claim 7, Modified Childress teaches the vehicle lavatory monument assembly of claim 6, wherein the predetermined pattern is a word (Burnell, [0054], teaches an application of the coating to be used for signage which is understood to be a predetermined pattern of words and symbols). Regarding claim 9, Modified Childress teaches the vehicle lavatory monument assembly of claim 6, wherein the predetermined pattern (Burnell, [0054], coating can be used for signage which is understood to be a predetermined pattern of words and symbols) also includes a first fluorescing additive (Burnell, [0033]). Modified Childress does not teach wherein the predetermined pattern defines a predetermined pattern portion of the first visual indication coating. However, it would have been obvious to one having ordinary skill in the art prior to the effective filing date of the claimed invention to rearrange the fluorescing coatings and predetermined patterns as taught by Modified Childress so that the predetermined pattern defines a predetermined pattern portion of the first visual indication coating, so that the signage and symbols have a greater visual contrasts and better inform a user that the coating is current being exposed to UV light and this involves the rearrangement of parts which has already been found to be obvious. See MPEP 2144.04 (VI)(C). Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over Childress et al. (US 20160220716 A1) in view of Burnell (US 20030085383 A1) as applied to claim 1 above, and further in view of Walck et al. (US 20060066508 A1) (cited in Applicant’s IDS dated 06/05/2023). Regarding claim 3, Modified Childress teaches the vehicle lavatory monument assembly of claim 2 wherein the first fluorescing additive is configured to emit a first color (Burnell, [0143] and wherein pigments can be added to emit a variety of colors ([0086, [0176]), but does not teach wherein the first visual indication coating includes a second fluorescing additive, and wherein the second fluorescing additive is configured to emit a second color. One having ordinary skill in the art would be concerned with a user visually identifying what wavelength of UV radiation is being used to sterilize the lavatory, motivating one to turn towards Walck. Walck teaches a display system, comprising a fluorescent material (understood to be a coating) having an absorption band carried on a support, wherein the support is a laminated article having a first ply [0040], having a first major surface (48) and a second major surface (50) with the fluorescent material (11) deposited on one of the major surfaces [0049]. Walck teaches wherein multiple fluorescent materials may be applied to the substrate by any conventional coating method to emit different colors when exposed to different wavelengths [0067]. Walck is considered analogous to the claimed invention since both are drawn to the photochromatic coating arts. Therefore, it would have been obvious to one having ordinary skill in the art prior to the effective filing date of the claimed invention to modify the first visual indication coating as taught by Modified Childress with the a second fluorescing additive as taught by Walck to provide a visual indication of what wavelength of UV light is being used to sterilize the laboratory (and prevent a user from entering the when visually seeing an indication that a more harmful wavelength of UV light is present) and since Walck teaches the selective use of fluorescent coatings configured to emit different colors when exposed to different wavelengths [0067] and this involves the combination of elements to yield a predictable result with a reasonable expectation of success. See MPEP 2143(I)(A). Claim(s) 8, 10, and 12 are rejected under 35 U.S.C. 103 as being unpatentable over Childress et al. (US 20160220716 A1) in view of Burnell (US 20030085383 A1) and Thiagarajan (US 20160287758 A1). Regarding claim 8, Modified Childress teaches the vehicle lavatory monument assembly of claim 1, wherein the first visual indication coating includes an antimicrobial additive (Burnell, “the following descriptions are examples of materials that may be utilized to practice the present invention [0145] ... LUMILUX(R) Green N-PM 50090 long afterglow ZnS:Cu (Zinc Sulfide: copper) pigment [0172]; copper is well known in the art to have antimicrobial properties as exemplified by Thiagarajan in para [0047]). Regarding claim 10, Childress teaches a vehicle lavatory monument assembly and disinfection system [0007] comprising: an enclosure that includes a plurality of walls that cooperate to define a lavatory interior, wherein a door is positioned on one of the plurality of walls (Figs 2 and 3, depict the lavatory with 4 walls, and a door on one of the walls ([0009], [0035-0036]), a first component positioned in the lavatory interior ([0033], reflective material 124 may be a reflective coating 125 applied to plurality of surfaces 128 inside lavatory [0036] = surfaces understood to be components), wherein the first component includes a first coating on an outer surface thereof [0033]. Childress does not teach wherein the first component includes a first visual indication coating on an outer surface thereof, wherein the first visual indication coating includes at least an antimicrobial additive, a first excitation additive, wherein the first excitation additive is configured to illuminate when irradiated by a first light that includes light waves within a predetermined wavelength range. One having ordinary skill in the art would be concerned with a alerting users to the presence of harmful UV light during lavatory sterilization, motivating one towards Burnell. Burnell teaches a phosphorescent resin which may be used to coat an article (para [0032]), wherein the coating is a visual indication coating (coating has luminescent properties, [0035]), wherein the first visual indication coating includes at least a first excitation additive [0033], and wherein the first excitation additive is configured to illuminate when irradiated by a first light that includes light waves within a predetermined wavelength range [0033]. Burnell is considered analogous to the claimed invention since both are drawn to the photochromatic coating arts. Therefore, it would have been obvious to one having ordinary skill in the art prior to the effective filing date of the claimed invention to modify the coating as taught by Childress to include the coating as taught by Burnell since Burnell teaches the coating to be used within a vehicle for emergency illumination [0054] and such coating would prevent users from entering an area being sterilization by UV light as a visual indication of sterilization would be provided and this involves the combination of elements to yield a predictable result with a reasonable expectation of success. See MPEP 2143(I)(A). Accordingly, Modified Childress teaches a first fluorescing additive (Burnell, [0143]) and a first phosphorescing additive (Burnell, [0033]), wherein the first fluorescing additive and the first phosphorescing additive are configured to illuminate when irradiated by a first light that includes light waves within a predetermined wavelength range (Burnell, [0033], [0143]), wherein the phosphorescing additive is present in the first visual indication coating in a predetermined pattern (Burnell, [0054], teaches an application of the coating to be used for signage which is understood to be a predetermined pattern of words and symbols), and wherein the first fluorescing additive includes an antimicrobial additive (Burnell, “the following descriptions are examples of materials that may be utilized to practice the present invention [0145] ... LUMILUX(R) Green N-PM 50090 long afterglow ZnS:Cu (Zinc Sulfide: copper) pigment [0172]; copper is well known in the art to have antimicrobial properties as exemplified by Thiagarajan in para [0047]). Regarding claim 12, Modified Childress teaches the vehicle lavatory monument assembly of claim 10, wherein the predetermined pattern (Burnell, [0054], coating can be used for signage which is understood to be a predetermined pattern of words and symbols) also includes a first fluorescing additive (Burnell, [0033]). Modified Childress does not teach wherein the predetermined pattern defines a predetermined pattern portion of the first visual indication coating. However, it would have been obvious to one having ordinary skill in the art prior to the effective filing date of the claimed invention to rearrange the fluorescing coatings and predetermined patterns as taught by Modified Childress so that the predetermined pattern defines a predetermined pattern portion of the first visual indication coating, so that the signage and symbols have a greater visual contrast and better inform a user that the coating is current being exposed to UV light and this involves the rearrangement of parts which has already been found to be obvious. See MPEP 2144.04 (VI)(C). Claim 11 is rejected under 35 U.S.C. 103 as being unpatentable over Childress et al. (US 20160220716 A1) in view of Burnell (US 20030085383 A1) and Thiagarajan (US 20160287758 A1), as applied to claim 10 above, and further in view of Walck et al. (US 20060066508 A1) (cited in Applicant’s IDS dated 06/05/2023). Regarding claim 11, Modified Childress teaches the vehicle lavatory monument assembly of claim 10 wherein the first fluorescing additive is configured to emit a first color (Burnell, [0143] and wherein pigments can be added to emit a variety of colors ([0086, [0176]), but does not teach wherein the first visual indication coating includes a second fluorescing additive, and wherein the second fluorescing additive is configured to emit a second color. One having ordinary skill in the art would be concerned with a user visually identifying what wavelength of UV radiation is being used to sterilize the lavatory, motivating one to turn towards Walck. Walck teaches a display system, comprising a fluorescent material (understood to be a coating) having an absorption band carried on a support, wherein the support is a laminated article having a first ply [0040], having a first major surface (48) and a second major surface (50) with the fluorescent material (11) deposited on one of the major surfaces [0049]. Walck teaches wherein multiple fluorescent materials may be applied to the substrate by any conventional coating method to emit different colors when exposed to different wavelengths [0067]. Walck is considered analogous to the claimed invention since both are drawn to the photochromatic coating arts. Therefore, it would have been obvious to one having ordinary skill in the art prior to the effective filing date of the claimed invention to modify the first visual indication coating as taught by Modified Childress with the a second fluorescing additive as taught by Walck to provide a visual indication of what wavelength of UV light is being used to sterilize the laboratory (and prevent a user from entering the when visually seeing an indication that a more harmful wavelength of UV light is present) and since Walck teaches the selective use of fluorescent coatings configured to emit different colors when exposed to different wavelengths [0067] and this involves the combination of elements to yield a predictable result with a reasonable expectation of success. See MPEP 2143(I)(A). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. US 20210402033 A1 teaches a sterilization indicator with a color sensor configured to respond to UV light US 20220096680 A1 teaches a system for cleaning including a photochromatic indicator configured to sense UV light US 20180369440 A1 teaches a cleanliness indication system comprising a photoluminescent indicator responsive to UV light. Any inquiry concerning this communication or earlier communications from the examiner should be directed to NEBYATE SEGED whose telephone number is (703)756-4611. The examiner can normally be reached M-F 8-5:00 pm (EST). 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, Maris Kessel can be reached at (571) 270-7698. 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. /N.S.S./Examiner, Art Unit 1758 /MARIS R KESSEL/Supervisory Patent Examiner, Art Unit 1758
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Prosecution Timeline

May 30, 2023
Application Filed
Dec 04, 2025
Non-Final Rejection mailed — §103
Mar 03, 2026
Response Filed
May 27, 2026
Final Rejection mailed — §103 (current)

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Prosecution Projections

3-4
Expected OA Rounds
31%
Grant Probability
78%
With Interview (+46.7%)
3y 7m (~7m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 26 resolved cases by this examiner. Grant probability derived from career allowance rate.

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