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US2967448A
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US
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Drive fastener with anchoring teeth on the tapered portion thereof
Assignee: Individual
•
Filing: 1955-06-20
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Granted: 1961-01-10
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Hallock Robert Lay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:29
CPC Classifications
F; F16; F16B; F16B15/00; F16B15/06; Y; Y10; Y10S; Y10S411/00; Y10S411/923; Y10S411/955; Y10S411/965; Y10S411/968
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) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |