US2498397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for sheet metal workers
Assignee: Individual
•
Filing: 1946-10-10
•
Granted: 1950-02-21
•
Expires: 1966-10-10
Abstract
No abstract record available.
Inventors
- 👤 Walter J Daly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:48
CPC Classifications
B; B25; B25H; B25H7/00; B25H7/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US13237A
Cited
US367290A
Cited
US517696A
Cited
US1739440A
Cited
US1011390A
Cited
US1392825A
Cited
US1700857A
Cited
US1753191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |