Patent US3407787A successfully refreshed from Google Patents.
US3407787A
Expired / Lapsed
US
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Lpg vaporizer
Assignee: Ransome Torck & Burner Co
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Filing: 1967-01-03
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Granted: 1968-10-29
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Expires: 1987-01-03
Abstract
No abstract record available.
Inventors
- 👤 Carl E Golden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:46
CPC Classifications
F; F17; F17C; F17C7/00; F17C7/02; F17C7/04; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2227/00; F17C2227/03; F17C2227/0367; F17C2227/0388; F17C2227/0393
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |