US3434262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blind fastener for sandwich panel and method
Assignee: National Screw and Manufacturing Co
•
Filing: 1967-09-08
•
Granted: 1969-03-25
•
Expires: 1987-09-08
Abstract
No abstract record available.
Inventors
- 👤 Frank W Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:27
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/01; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49947; Y10T29/49948
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2585557A
Cited
US3173520A
Cited
US3078002A
Cited
US3324618A
Cited
US3252493A
Cited
US3307444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |