Patent US3476007A successfully refreshed from Google Patents.
US3476007A
Expired / Lapsed
US
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Key bolt
Assignee: Individual
•
Filing: 1968-09-09
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Granted: 1969-11-04
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Expires: 1988-09-09
Abstract
No abstract record available.
Inventors
- 👤 Frank C Collister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:13
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/12; F16B13/00; F16B13/04; F16B13/08; F16B13/0808
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) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |