Patent US3209568A successfully refreshed from Google Patents.
US3209568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retainer for spring biased tumblers of a cylinder lock
Assignee: Independent Lock Co
•
Filing: 1963-11-27
•
Granted: 1965-10-05
•
Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 George P Patriquin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:45
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/0003; E05B27/0014; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7486; Y10T70/7508; Y10T70/7559; Y10T70/7588; Y10T70/7593; Y10T70/7599; Y10T70/7605; Y10T70/7667; Y10T70/7672
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |