US2475937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined knife holder and sharpener
Assignee: Individual
•
Filing: 1948-07-28
•
Granted: 1949-07-12
•
Expires: 1968-07-28
Abstract
No abstract record available.
Inventors
- 👤 Fred H Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/06; B24D15/08; B24D15/084
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US621342A
Cited
US1173549A
Cited
US1555107A
Cited
US1861683A
Cited
US2413169A
Cited
US2430700A
Cited
US2441690A
Cited
US2425571A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |