US2741881A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinder or the like
Assignee: Standard Electrical Tool Co
•
Filing: 1950-01-13
•
Granted: 1956-04-17
•
Expires: 1970-01-13
Abstract
No abstract record available.
Inventors
- 👤 John J Falls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:38
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US270365A
Cited
US377701A
Cited
US401278A
Cited
US1625127A
Cited
DE110446C
Cited
US647413A
Cited
US789741A
Cited
US988231A
Cited
GB169048A
Cited
US1405922A
Cited
US1680360A
Cited
US1862583A
Cited
US1927655A
Cited
US1842538A
Cited
US1911857A
Cited
US1972160A
Cited
US2000667A
Cited
US2021602A
Cited
US2052031A
Cited
US2175347A
Cited
US2209711A
Cited
US2292229A
Cited
GB562355A
Cited
US2361550A
Cited
US2428903A
Cited
US2444523A
Cited
US2469531A
Cited
US2538532A
Cited
US2512303A
Cited
US2560944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-17 | 1959-10-17 | 1960-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-17 | 1963-10-17 | 1964-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-17 | 1967-10-17 | 1968-04-17 | $7700.00 | Window Closed / Lapsed |