US3489678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precluding liquid from a compressing zone
Assignee: Phillips Petroleum Co
•
Filing: 1966-11-28
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Granted: 1970-01-13
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Expires: 1986-11-28
Abstract
No abstract record available.
Inventors
- 👤 John A Moon
- 👤 George K Cederberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:27
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0242; C; C10; C10G; C10G5/00; C10G5/06; F25J3/0204; F25J3/0219; F25J3/0238; F25J2205/00; F25J2205/02; F25J2210/00; F25J2210/12; F25J2230/00; F25J2230/60; F25J2245/00; F25J2245/02; Y; Y10; Y10S; Y10S203/00; Y10S203/19
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |