US2949126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level control
Assignee: Phillips Petroleum Co
•
Filing: 1958-08-01
•
Granted: 1960-08-16
•
Expires: 1978-08-01
Abstract
No abstract record available.
Inventors
- 👤 Louis E Kuntz
- 👤 Marvin A Remke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:22
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/162; G01F23/30; G01F23/64; G01F23/68; G01F23/70; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3118; Y10T137/7287; Y10T137/7339; Y10T137/7349; Y10T137/7358; Y10T137/7423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US347589A
Cited
US1346898A
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US1981530A
Cited
US2239157A
Cited
US2243188A
Cited
US2487933A
Cited
US2856775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |