US2685928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller clamp for punch presses
Assignee: AT&T Inc
•
Filing: 1952-03-07
•
Granted: 1954-08-10
•
Expires: 1972-03-07
Abstract
No abstract record available.
Inventors
- 👤 Fred H Bergh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:38
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/16; B25B5/163; B21; B21D; B21D28/00; B21D28/24; B21D28/243; B25B1/00; B25B1/24; B25B1/2405; B25B5/06; B25B5/12; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/7573
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US722900A
Cited
US886876A
Cited
US1416168A
Cited
US1715244A
Cited
US2198501A
Cited
US2373844A
Cited
US2422775A
Cited
US2627105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |