US2778265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid cup-point set screw
Assignee: SET SCREW AND Manufacturing CO
•
Filing: 1953-06-15
•
Granted: 1957-01-22
•
Expires: 1973-06-15
Abstract
No abstract record available.
Inventors
- 👤 Calvin O Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:19
CPC Classifications
F; F16; F16B; F16B35/00; F16B35/005; F16B35/04; F16B35/041; F16B35/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US400459A
Cited
GB190007415A
Cited
US1912177A
Cited
US2314274A
Cited
US2295314A
Cited
GB570889A
Cited
US2549823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |