US2451279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable capacity vane pump for oil burners
Assignee: Gilbarco Inc
•
Filing: 1944-08-04
•
Granted: 1948-10-12
•
Expires: 1964-08-04
Abstract
No abstract record available.
Inventors
- 👤 Lancey Warren H De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/18; F04C14/22; F04C14/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191002291A
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US1908534A
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US2009137A
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US2031749A
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US2146037A
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US2149864A
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US2192660A
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US2246610A
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US2229231A
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US2346398A
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US2330066A
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US2364489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |