Patent US3404716A successfully refreshed from Google Patents.
US3404716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking fastener
Assignee: Tridair Industries Inc
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Filing: 1967-04-07
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Granted: 1968-10-08
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Expires: 1987-04-07
Abstract
No abstract record available.
Inventors
- 👤 Frank J Cosenza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/32; F16B39/02; F16B39/10; F16B5/00; F16B5/02; F16B5/0208; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/948; Y10S411/95; Y10S411/951; Y10S411/999
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |