Patent US2744809A successfully refreshed from Google Patents.
US2744809A
Expired / Lapsed
US
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Fuel systems for light portable gas combustion burners
Assignee: PREPO Corp
•
Filing: 1952-12-09
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Granted: 1956-05-08
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Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Louis A Falligant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:33
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/28; F21; F21L; F21L19/00; F24; F24C; F24C3/00; F24C3/02; F24C3/027; F24C3/14; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |