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US3508775A
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Safety nut
Assignee: SPS Technologies LLC
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Filing: 1968-09-26
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Granted: 1970-04-28
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Expires: 1988-09-26
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Simonson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:58
CPC Classifications
F; F16; F16B; F16B37/00; F16B41/00; F16B41/002; Y; Y10; Y10S; Y10S411/00; Y10S411/999; Y10T; Y10T403/00; Y10T403/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB156084A
Cited
US2108316A
Cited
US2402583A
Cited
US2449846A
Cited
US2643573A
Cited
US3412774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |