US2473609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oyster opening apparatus
Assignee: Individual
•
Filing: 1946-01-30
•
Granted: 1949-06-21
•
Expires: 1966-01-30
Abstract
No abstract record available.
Inventors
- 👤 John L Plock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:58
CPC Classifications
A; A47; A47G; A47G21/00; A47G21/06; A47G21/061
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US69531A
Cited
US848608A
Cited
US904000A
Cited
US1117726A
Cited
US1228383A
Cited
US1510313A
Cited
US1555518A
Cited
US1679787A
Cited
US1683113A
Cited
US1974766A
Cited
US2133529A
Cited
US2354928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |