US2676510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw driver slot with driver wedging means
Assignee: National Screw and Manufacturing Co
•
Filing: 1950-09-23
•
Granted: 1954-04-27
•
Expires: 1970-09-23
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Hodell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:07
CPC Classifications
B; B25; B25B; B25B15/00; B25B15/001; B25B15/004; B25B15/005; A; A47; A47G; A47G3/00; F; F16; F16B; F16B23/00; F16B23/0007; F16B23/0015; Y; Y10; Y10S; Y10S411/00; Y10S411/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US915068A
Cited
US1056095A
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GB178160A
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US1476653A
Cited
US1934347A
Cited
US1997422A
Cited
US2160244A
Cited
US2304704A
Cited
US2322509A
Cited
US2431628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |