Patent US2772555A successfully refreshed from Google Patents.
US2772555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyless combination push button door lock
Assignee: Individual
•
Filing: 1953-08-07
•
Granted: 1956-12-04
•
Expires: 1973-08-07
Abstract
No abstract record available.
Inventors
- 👤 Hurley H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:32
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/16; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5465; Y10T70/5482; Y10T70/55; Y10T70/5518; Y10T70/70; Y10T70/7153; Y10T70/7158
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |