Patent US3473522A successfully refreshed from Google Patents.
US3473522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas mileage booster
Assignee: Individual
•
Filing: 1966-08-11
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Granted: 1969-10-21
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Expires: 1986-08-11
Abstract
No abstract record available.
Inventors
- 👤 Ferrall W Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:27
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/02; F01M13/021; F01M13/022; F02; F02M; F02M1/00; F01M5/00; F01M5/001; F01P; F01P2060/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/434; F02M2700/4342; F02M2700/4347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323737A
Cited
US1143331A
Cited
US1234995A
Cited
US2264133A
Cited
GB766303A
Cited
US2696202A
Cited
US2781032A
Cited
US2757654A
Cited
US3024778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |