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US2712885A
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Selective fluid metering system
Assignee: Standard Oil Co
•
Filing: 1949-05-10
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Granted: 1955-07-12
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 John T Winship
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:18
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/08; B67D7/10; B67D7/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179698A
Cited
US1607899A
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DE516633C
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US2060674A
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US2049634A
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US2174656A
Cited
US2538243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |