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US2908478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor valve
Assignee: Phillips Petroleum Co
•
Filing: 1955-11-23
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Granted: 1959-10-13
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Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 Starrett Delbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:53
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/165
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US379824A
Cited
US927422A
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US1156392A
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US1425412A
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US1631109A
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US1644717A
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US2564569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |