US2813441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoop iron tightening and clamping device
Assignee: Individual
•
Filing: 1954-12-01
•
Granted: 1957-11-19
•
Expires: 1974-12-01
Abstract
No abstract record available.
Inventors
- 👤 Borbe Erich
- 👤 Rosenberger Jakob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:44
CPC Classifications
B; B65; B65B; B65B13/00; B65B13/18; B65B13/24; B65B13/34; B65B13/345
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2097946A
Cited
US2661030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |