US3051433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve locking apparatus
Assignee: Standard Oil Co
•
Filing: 1959-12-10
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Granted: 1962-08-28
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Expires: 1979-12-10
Abstract
No abstract record available.
Inventors
- 👤 Allan L Dale
- 👤 Orullian Alma
- 👤 Bill J Pope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:42
CPC Classifications
F; F16; F16K; F16K35/00
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |