US3714938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camp stove
Assignee: Toastmaster Inc
•
Filing: 1971-04-20
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Granted: 1973-02-06
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Expires: 1991-04-20
Abstract
Abstract A CAMP STOVE HAVING SEPARATE BURNERS THAT RECEIVE FUEL FROM SEPARATE VAPORIZING TUBES, BUT WHERE ONE BURNER HEATS BOTH OF THE VAPORIZING TUBES, AND FURTHER HAVING A CONTROL AS BETWEEN TWO BURNERS THAT RECEIVE FUEL MIXTURE FROM THE SAME VAPORIZING TUBE SUCH THAT WHEN THE CONTROL IS CLOSED IT DIRECTS ALL OF THE MIXTURE TO THE SECOND BUT AS IT IS SHIFTED TO ADMIT FUEL MIXTURE TO THE SECOND BURNER IT ALSO THROTTLES THE FUEL MIXTURE PASSAGE TO THE FIRST BURNER SO THAT FUEL MIXTURE IS DIRECTED TO THE BURNERS IN APPROXIMATELY EQUAL QUANTITIES WHEN THE CONTROL IS FULLY SHIFTED.
Inventors
- 👤 J Spotts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:22
CPC Classifications
F; F24; F24C; F24C5/00; F24C5/20; F24C5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |