US3279304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength blind fastener
Assignee: National Screw and Manufacturing Co
•
Filing: 1965-07-07
•
Granted: 1966-10-18
•
Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 Howard L Hopkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:20
CPC Classifications
F; F16; F16B; F16B19/00; F16B19/04; F16B19/08; F16B19/10; F16B19/1027; F16B19/1036; F16B19/1045; F16B19/1054; F16B19/1072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2030168A
Cited
US2406157A
Cited
GB567274A
Cited
US2525117A
Cited
US2612073A
Cited
FR928122A
Cited
US2974558A
Cited
US3203303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |