US3435672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas injectivity or productivity profile logging
Assignee: Texaco Inc
•
Filing: 1965-07-22
•
Granted: 1969-04-01
•
Expires: 1985-07-22
Abstract
No abstract record available.
Inventors
- 👤 Karl C Ten Brink
- 👤 Charles D Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:36
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/26; G01N33/28; G01N33/2835; G01N33/2841; E; E21; E21B; E21B47/00; E21B47/10; E21B47/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123708A
Cited
US2336612A
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US2700734A
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US2947869A
Cited
US3010023A
Cited
US2993119A
Cited
US3077104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |