Patent US3858979A successfully refreshed from Google Patents.
Patent US2915778A successfully refreshed from Google Patents.
US2915778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door holding device
Assignee: Individual
•
Filing: 1956-01-26
•
Granted: 1959-12-08
•
Expires: 1976-01-26
Abstract
No abstract record available.
Inventors
- 👤 Vito Angelo R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:28
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/12; E05C17/20; E05C17/203; Y; Y10; Y10T; Y10T292/00; Y10T292/45; Y10T292/47
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1854386A
Cited
US2321409A
Cited
US2567662A
Cited
US2476182A
Cited
US2465088A
Cited
US2723776A
Cited
US2722334A
Cited
US2683447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |