US3000420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut with recesses to receive metal of the workpiece
Assignee: Individual
•
Filing: 1958-03-14
•
Granted: 1961-09-19
•
Expires: 1978-03-14
Abstract
No abstract record available.
Inventors
- 👤 Spokes Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:55
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/06; F16B37/062; F16B37/068; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA500583A
Cited
US1249948A
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US1842117A
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US1923546A
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US2144701A
Cited
US2170290A
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US2177191A
Cited
US2191193A
Cited
US2722259A
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FR1076611A
Cited
FR1091566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |