US2943869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Couplings and safety devices therefor
Assignee: Individual
•
Filing: 1959-08-07
•
Granted: 1960-07-05
•
Expires: 1979-08-07
Abstract
No abstract record available.
Inventors
- 👤 Obert L Nordin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:11
CPC Classifications
F; F16; F16L; F16L55/00; F16L37/00; F16L37/08; F16L37/10; F16L37/113; Y; Y10; Y10S; Y10S285/00; Y10S285/919
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |