US2451948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shearing apparatus
Assignee: Siemens Industry Inc
•
Filing: 1946-04-26
•
Granted: 1948-10-19
•
Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hawthorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:50
CPC Classifications
B; B23; B23D; B23D25/00; B23D25/12; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4812; Y10T83/4815; Y10T83/483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |