US3052479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pressure actuated work holding apparatus
Assignee: LOUIS CEVOLA
•
Filing: 1960-04-11
•
Granted: 1962-09-04
•
Expires: 1980-04-11
Abstract
No abstract record available.
Inventors
- 👤 Trell Jack K La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:03
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/307; Y; Y10; Y10T; Y10T279/00; Y10T279/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1842500A
Cited
US2043027A
Cited
US2457388A
Cited
US2644274A
Cited
US2730370A
Cited
US2852264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |