US1561803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip-straightening attachment for rotary shears
Assignee: Individual
•
Filing: 1921-12-07
•
Granted: 1925-11-17
•
Expires: 1941-12-07
Abstract
No abstract record available.
Inventors
- 👤 Smith Henry Collier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:37
CPC Classifications
B; B23; B23D; B23D19/00; B23D19/04; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7684; Y10T83/7701; Y10T83/7709; Y10T83/7713; Y10T83/7718
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-11-16 | 1929-05-18 | 1929-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-16 | 1933-05-18 | 1933-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-16 | 1937-05-18 | 1937-11-17 | $7700.00 | Window Closed / Lapsed |