US2648174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sharpening and polishing machine
Assignee: Individual
•
Filing: 1950-03-28
•
Granted: 1953-08-11
•
Expires: 1970-03-28
Abstract
No abstract record available.
Inventors
- 👤 Bikles Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:18
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24B3/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US849391A
Cited
US1115640A
Cited
GB289311A
Cited
US1925108A
Cited
FR794699A
Cited
GB475216A
Cited
GB487973A
Cited
US2228385A
Cited
GB531771A
Cited
US2301351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |