US3030997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic locking nut with sealing flange
Assignee: Prestole Corp
•
Filing: 1958-06-10
•
Granted: 1962-04-24
•
Expires: 1978-06-10
Abstract
No abstract record available.
Inventors
- 👤 Coy W Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
F; F16; F16B; F16B37/00; F16B33/00; F16B33/004; F16B33/006; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947; Y10S411/955; Y10S411/956; Y10S411/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734547A
Cited
US1875930A
Cited
US2706656A
Cited
FR1062703A
Cited
US2761349A
Cited
US2788829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |