US2982166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener head the underlying surface of which has means to smooth the workpiece surface
Assignee: Individual
•
Filing: 1958-07-24
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Granted: 1961-05-02
•
Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:16
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/282; F16B25/00; F16B25/001; F16B25/0015; F16B35/00; F16B35/04; F16B35/06; F16B35/065; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/959; Y10T; Y10T407/00; Y10T407/19; Y10T407/1906; Y10T407/1908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB113183A
Cited
US1955924A
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US1894708A
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US2096598A
Cited
US2199809A
Cited
US2229892A
Cited
US2764197A
Cited
US2764053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |