Patent US2931203A successfully refreshed from Google Patents.
US2931203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination padlock
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1955-11-17
•
Granted: 1960-04-05
•
Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 Mathias M Check
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:53
CPC Classifications
E; E05; E05B; E05B37/00; E05B37/08; E05B37/10; Y; Y10; Y10T; Y10T70/00; Y10T70/40; Y10T70/413; Y10T70/415; Y10T70/417; Y10T70/422; Y10T70/424; Y10T70/70; Y10T70/7147
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US894520A
Cited
US941028A
Cited
US1472577A
Cited
US2049416A
Cited
US1981163A
Cited
US2155732A
Cited
US2175808A
Cited
US2173720A
Cited
US2487608A
Cited
US2766608A
Cited
US2725739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |