US3307651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical tile
Assignee: United States Gypsum Co
•
Filing: 1966-02-25
•
Granted: 1967-03-07
•
Expires: 1986-02-25
Abstract
No abstract record available.
Inventors
- 👤 John S Podgurski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:03
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
AN ACOUSTICAL TILE COMPRISING A RELATIVELY THIN, FLAT BODY OF ACOUSTICAL COMPOSITION INCLUDING FIBROUS MATERIAL AND AN AMYLACEOUS BINDER, SAID BODY BEING POROUS AND NORMALLY HAVING INTRINSIC GAS PASSAGEWAYS THERETHROUGH, AND A LAYER OF SHEET MATERIAL IMPERVIOUS TO PASSAGE OF WATER VAPOR, SAID LAYER BEING COEXTENSIVE WITH THE BACK SURFACE OF SAID TILE AND FIRMLY BONDED THERETO THROUGHOUT SUBSTANTIALLY THE ENTIRE AREA OF SAID LAYER BY SAID BINDER.
Claim 2
Dependent Claim
68 words
AN ACOUSTICAL TILE COMPRISING A RELATIVELY THIN, FLAT BODY OF ACOUSTICAL COMPOSITION INCLUDING FIBROUS MATERIAL AND AN AMYLACEOUS BINDER, SAID BODY BEING POROUS AND NORMALLY HAVING INTRINSIC GAS PASSAGEWAYS THERETHROUGH, AND A LAYER OF SHEET MATERIAL IMPERVIOUS TO PASSAGE OF WATER VAPOR, SAID LAYER BEING COEXTENSIVE WITH THE BACK SURFACE OF SAID TILE AND FIRMLY BONDED THERETO THROUGHOUT SUBSTANTIALLY THE ENTIRE AREA OF SAID LAYER BY SAID BINDER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |