US2420741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut driver
Assignee: Individual
•
Filing: 1944-07-12
•
Granted: 1947-05-20
•
Expires: 1964-07-12
Abstract
No abstract record available.
Inventors
- 👤 Erik E Eriksson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:28
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/02; B25B23/04; B25B23/06; B25B23/065
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1469589A
Cited
US1417725A
Cited
US1419100A
Cited
US1537929A
Cited
FR582409A
Cited
GB225670A
Cited
US1585338A
Cited
US2256012A
Cited
US2366448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-19 | 1950-11-18 | 1951-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-19 | 1954-11-18 | 1955-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-19 | 1958-11-18 | 1959-05-20 | $7700.00 | Window Closed / Lapsed |