US2480826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for working sheet metal
Assignee: Individual
•
Filing: 1942-02-19
•
Granted: 1949-09-06
•
Expires: 1962-02-19
Abstract
No abstract record available.
Inventors
- 👤 Anderson Frohman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:44
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1142242A
Cited
US1459660A
Cited
US1588817A
Cited
US1608910A
Cited
US1773459A
Cited
US1767289A
Cited
US1823489A
Cited
US1753586A
Cited
US2251901A
Cited
US2337047A
Cited
US2301960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |