Patent US3276233A successfully refreshed from Google Patents.
US3276233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyway stop
Assignee: Individual
•
Filing: 1964-06-08
•
Granted: 1966-10-04
•
Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Fred J Russell
- 👤 Donald G Stroh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:54
CPC Classifications
E; E05; E05B; E05B27/00; E05B27/005; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7729; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7915; Y10T70/7955; Y10T70/796; Y10T70/7977; Y10T70/7983
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1696326A
Cited
US1728310A
Cited
US2068936A
Cited
US2427837A
Cited
US2591652A
Cited
US2662390A
Cited
US3191407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |