US3369602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Secondary recovery of petroleum
Assignee: Cities Service Oil Co
•
Filing: 1965-09-01
•
Granted: 1968-02-20
•
Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Wayne S Fallgatter
- 👤 John W Mcghee
- 👤 Jack A King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:28
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; C09K8/584
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3141501A
Cited
US3199586A
Cited
US3246694A
Cited
US3258072A
Cited
US3289759A
Cited
US3302713A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |