US2688771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid feeding and distributing device
Assignee: Universal Oil Products Co
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Filing: 1951-03-07
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Granted: 1954-09-14
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Expires: 1971-03-07
Abstract
No abstract record available.
Inventors
- 👤 George W Jandacek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:15
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/28; F26B17/284; F26B17/286; B; B01; B01J; B01J4/00; B01J4/001; C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/30; C01B25/308; C01D; C01D1/00; C01D1/04; C01D1/42; C01F; C01F11/00; C01F11/20; C01F11/24; C01F11/30; C01F5/00; C01F5/26; C01F5/30; C01F5/34
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) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |