Patent US2720058A successfully refreshed from Google Patents.
US2720058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Honing machine
Assignee: Individual
•
Filing: 1952-08-13
•
Granted: 1955-10-11
•
Expires: 1972-08-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur S King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:51
CPC Classifications
B; B24; B24B; B24B35/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US240226A
Cited
US453661A
Cited
US1141095A
Cited
US1146513A
Cited
US1486344A
Cited
US1647203A
Cited
US1719965A
Cited
US1870736A
Cited
US1930383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |