US2896752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended ceiling grid construction
Assignee: Individual
•
Filing: 1956-05-11
•
Granted: 1959-07-28
•
Expires: 1976-05-11
Abstract
No abstract record available.
Inventors
- 👤 William V Wilde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:14
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/127; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/349; Y10T403/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490921A
Cited
US511383A
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US893815A
Cited
US1090171A
Cited
US1118979A
Cited
US1537459A
Cited
GB397496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |