Prosecution Insights
Last updated: April 19, 2026
Application No. 18/079,627

CEILING SYSTEMS

Final Rejection §103
Filed
Dec 12, 2022
Examiner
DEMUREN, BABAJIDE A
Art Unit
3633
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
Armstrong World Industries Inc.
OA Round
3 (Final)
74%
Grant Probability
Favorable
4-5
OA Rounds
2y 2m
To Grant
96%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
761 granted / 1032 resolved
+21.7% vs TC avg
Strong +22% interview lift
Without
With
+22.4%
Interview Lift
resolved cases with interview
Typical timeline
2y 2m
Avg Prosecution
20 currently pending
Career history
1052
Total Applications
across all art units

Statute-Specific Performance

§101
0.3%
-39.7% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
31.8%
-8.2% vs TC avg
§112
17.1%
-22.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1032 resolved cases

Office Action

§103
Response to Amendment The indicated allowability of claims 53 is withdrawn in view of the newly discovered reference(s) to McClure US1540788. Rejections based on the newly cited reference(s) follow. 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 53 and 58-62 are rejected under 35 U.S.C. 103 as being unpatentable over Ortiz US20070193131 in view of McClure US1540788. Claim 53. Ortiz discloses a ceiling suspension grid (Abstract); a building panel comprising: a mesh member (40) comprising a first major surface opposite a second major surface, and four side surfaces extending there-between (rectangular panel as shown in Figures); a frame member (20) comprising a vertical side wall having an inner surface opposite an outer surface and an upper surface opposite a lower surface; wherein the first major surface and the second major surface are defined by a perimeter, the perimeter comprising a proximal end and a distal end (Fig.3); wherein the perimeter of the second major surface is in contact with the lower surface of the frame member (Fig.3); and wherein the frame member further comprises a securing member (18) at the upper surface at the proximal end and at the distal end (Fig.3), and a back panel (41) positioned between the building panel and the suspension grid (Fig.3) but is silent on the mesh is a metal mesh such that the wires are perpendicular to each other. McClure before the filing date of the instant invention discloses a metal mesh with wires 11 perpendicular to each other. Both Ortiz and McClure disclose mesh panels, it would have been obvious to one of ordinary skill in the art before the filing date of the instant invention to substitute one for the other with the intention of providing a ceiling panel with a longer service life. Claim 56. Ortiz as modified by McClure discloses the building panel has a parallelogram shape having perpendicular angles, the mesh is made of a first and second set of parallel wires (Fig.1 of McClure), wherein each set is perpendicular to the other, wherein the first set is atop and abuts the second set, wherein the perimeter further comprises side ends (Fig.2); wherein the proximal perimeter end and the distal perimeter end comprise a continuous wire body as the perimeter; and wherein the side ends comprise a continuous wire body and having discrete wire side end atop and abutting the continuous wire body as the perimeter (as illustrated in Fig.5 of McClure). Claim 58. Ortiz discloses the frame member comprises a wall cutout region (shown as 22) contacting the securing member (shown in Fig.3). Claim 59. Ortiz discloses the wall cutout region extends downward from the upper surface toward the lower surface (shown in Fig.3). Claim 60. Ortiz discloses a torsion spring bracket (element attached to spring 18 in Fig.7) is mounted on the cutout region (shown as 22, Fig.3). Claim 61. Ortiz discloses the back panel (41) is comprised of an acoustic material (P.0025 - acoustic insulating material 41 such as Soundtex). Claim 62. Ortiz discloses wherein the frame comprises two apertures (shown in Fig.3) from the inner surface to the outer surface, wherein each aperture flanks the cutout region (shown as 22) and abuts the torsion spring bracket (the aperture on the bracket in Fig.7 aligns with that of the frame in Fig.3). Allowable Subject Matter Claims 1, 7-8, 10, 14, 29, and 31-32 are allowed. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to BABAJIDE A DEMUREN whose telephone number is (571)270-7017. The examiner can normally be reached Mon-Fri 9am-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, Brian Glessner can be reached at 5712726754. 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. BABAJIDE A. DEMUREN Primary Examiner Art Unit 3633 /BABAJIDE A DEMUREN/Primary Examiner, Art Unit 3633
Read full office action

Prosecution Timeline

Dec 12, 2022
Application Filed
Jan 25, 2023
Response after Non-Final Action
Apr 19, 2025
Non-Final Rejection — §103
Aug 22, 2025
Response Filed
Dec 03, 2025
Final Rejection — §103
Jan 28, 2026
Response after Non-Final Action
Feb 21, 2026
Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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Patent 12559952
DEVICE FOR LEVELING AND ALIGNING TILES AND METHOD FOR LEVELING AND ALIGNING TILES
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Patent 12562673
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2y 5m to grant Granted Feb 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

4-5
Expected OA Rounds
74%
Grant Probability
96%
With Interview (+22.4%)
2y 2m
Median Time to Grant
High
PTA Risk
Based on 1032 resolved cases by this examiner. Grant probability derived from career allow rate.

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