US3368602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking captive screw assembly
Assignee: Tridair Industries Inc
•
Filing: 1966-04-01
•
Granted: 1968-02-13
•
Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:47
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/953; Y10S411/955; Y10S411/956; Y10S411/964; Y10S411/999
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1246353A
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US1646805A
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FR1026339A
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GB720884A
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US2737222A
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US2756796A
Cited
US2931087A
Cited
US3037542A
Cited
US3204680A
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US3250559A
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US3294140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |