US2471445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal bending tool
Assignee: Individual
•
Filing: 1944-12-28
•
Granted: 1949-05-31
•
Expires: 1964-12-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:27
CPC Classifications
B; B21; B21D; B21D19/00; B21D19/02; B21D19/04; B21D19/043; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49867; Y10T29/49869
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1058210A
Cited
US1656277A
Cited
US1713940A
Cited
US1782641A
Cited
US2010569A
Cited
US2146949A
Cited
US2303814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |