Patent US4197923A successfully refreshed from Google Patents.
US4197923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical ceiling baffle
Assignee: Owens Corning
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Filing: 1978-11-27
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Granted: 1980-04-15
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Expires: 1998-11-27
Abstract
Abstract A fibrous glass board is longitudinally grooved on one side adjacent the center for folding. The folded board is provided with a pair of plastic end caps respectively on opposite ends. The exposed surfaces of the folded board are provided with a decorative facing material, preferably glass cloth. Means are provided for suspending the completed baffle by the end caps from a gridwork of inverted T-bars.
Inventors
- 👤 David A. Harris
- 👤 James E. Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:39
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B9/00; E04B9/34; E04B2001/8263; E04B2001/829; E04B2001/8423; E04B2001/8452; E04B2001/8457; E04B2001/8461
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
79 words
An acoustical ceiling baffle comprising an elongate fabricated fibrous board longitudinally grooved on one side with a pair of grooves, faced with a decorative facing material on the other side, and folded at the grooves to provide a double thickness of the board with the facing material on the outside, and a pair of end caps respectively enclosing opposite end portions of the folded board and each having provision on an upper wall portion thereof for suspending the baffle.
Claim 2
Dependent Claim
79 words
An acoustical ceiling baffle comprising an elongate fabricated fibrous board longitudinally grooved on one side with a pair of grooves, faced with a decorative facing material on the other side, and folded at the grooves to provide a double thickness of the board with the facing material on the outside, and a pair of end caps respectively enclosing opposite end portions of the folded board and each having provision on an upper wall portion thereof for suspending the baffle.
Claim 3
Dependent Claim
14 words
A ceiling baffle as claimed in claim 1 wherein the board is fibrous glass.
Claim 4
Dependent Claim
15 words
A ceiling baffle as claimed in claim 1 wherein the facing is woven glass cloth.
Claim 5
Dependent Claim
46 words
A ceiling baffle as claimed in claim 1 wherein the facing material has flaps originally extending transversely beyond opposite longitudinal edges of the unfolded board and the flaps are wrapped around the edge portions of the board and extend into the fold of the folded board.
References Cited (Backward Citations)
US2704865A
Cited
US2994112A
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US2882990A
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US3160226A
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US3159235A
Cited
US3857459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |