Patent JPS63258342A successfully refreshed from Google Patents.
Patent US2729923A successfully refreshed from Google Patents.
US2729923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jointer sharpener
Assignee: Individual
•
Filing: 1953-05-01
•
Granted: 1956-01-10
•
Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
- 👤 Walter H Durst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:50
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24B3/363
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1038500A
Cited
US831541A
Cited
US900284A
Cited
US1085876A
Cited
US2347800A
Cited
US2549147A
Cited
DE804070C
Cited
US2620606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |