Patent US2792008A successfully refreshed from Google Patents.
US2792008A
Expired / Lapsed
US
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Devices for cleaning out internal combustion engine carburetors
Assignee: Pennsylvania Refining Co
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Filing: 1953-12-31
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Granted: 1957-05-14
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Expires: 1973-12-31
Abstract
No abstract record available.
Inventors
- 👤 Glenn Dale Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:10
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1040147A
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US1240977A
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US1299805A
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US1820552A
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US2201773A
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US2281695A
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US2266288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |