Patent US2793504A successfully refreshed from Google Patents.
US2793504A
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Portable apparatus utilizing pressurized gas fuel
Assignee: Otto Bernz Co Inc
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Filing: 1954-06-22
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Granted: 1957-05-28
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Expires: 1974-06-22
Abstract
No abstract record available.
Inventors
- 👤 Milo E Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:54
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/304; F16K1/305; F16K1/307; F16L; F16L29/00; F16L29/02; F17; F17C; F17C13/00; F17C13/04; G; G05; G05D; G05D7/00; G05D7/01; G05D7/0126; G05D7/0133; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/613; Y10T137/6137; Y10T137/8593; Y10T137/87917; Y10T137/88054
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) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |