Patent US3523299A successfully refreshed from Google Patents.
US3523299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread engaging sheet metal fastener
Assignee: Individual
•
Filing: 1967-10-10
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Granted: 1970-08-04
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Expires: 1987-10-10
Abstract
No abstract record available.
Inventors
- 👤 George A Tinnerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:59
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/041; F16B21/00; F16B21/10; F16B21/16; F16B37/02; F16B37/043; F16B43/00; Y; Y10; Y10S; Y10S411/00; Y10S411/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2047298A
Cited
US2260147A
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US2156002A
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US2382936A
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US2383164A
Cited
US2434844A
Cited
US2561473A
Cited
US3207022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |