Patent US2963751A successfully refreshed from Google Patents.
US2963751A
Expired / Lapsed
US
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Demountable flush type acoustical ceilling construction
Assignee: Individual
•
Filing: 1958-06-02
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Granted: 1960-12-13
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Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Mancini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:58
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/064; E04B9/12; E04B9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2822584A
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US2742122A
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US2866233A
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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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |