US2507464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel vaporizer
Assignee: Individual
•
Filing: 1948-05-27
•
Granted: 1950-05-09
•
Expires: 1968-05-27
Abstract
No abstract record available.
Inventors
- 👤 So Hugo De Andrade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
F; F23; F23C; F23C99/00; F23D; F23D11/00; F23D11/36; F23D11/44; F23C2700/00; F23C2700/02; F23C2700/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1006244A
Cited
US1941678A
Cited
US2070635A
Cited
US2177339A
Cited
US2311199A
Cited
US2276809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |