US2952480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device detachably coupling grooved cylindrical surfaces
Assignee: Beckman Coulter Inc
•
Filing: 1956-10-22
•
Granted: 1960-09-13
•
Expires: 1976-10-22
Abstract
No abstract record available.
Inventors
- 👤 William K Prill
- 👤 Marason Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:23
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/50; F16L37/53; F16L37/08; F16L37/084; F16L37/088; F16L37/0885
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |