US2747535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic clamp
Assignee: Individual
•
Filing: 1953-01-16
•
Granted: 1956-05-29
•
Expires: 1973-01-16
Abstract
No abstract record available.
Inventors
- 👤 Elmer P Curry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:30
CPC Classifications
B; B21; B21D; B21D7/00; B21D7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1060477A
Cited
US2021893A
Cited
US2176664A
Cited
US2269754A
Cited
US2389526A
Cited
US2436806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |