US3499641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure actuated diaphragm workpiece clamping device
Assignee: Collins Radio Co
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Filing: 1967-10-02
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Granted: 1970-03-10
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Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 John R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:53
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/08; B23Q11/0816; B23Q11/0042; B23Q11/006; B23Q3/00; B23Q3/02; B23Q3/06; B23Q3/08; B23Q3/082; Y; Y02; Y02P; Y02P70/00; Y02P70/10
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) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |