US3434446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remotely controllable pressure responsive apparatus
Assignee: ConocoPhillips Co
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Filing: 1967-10-02
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Granted: 1969-03-25
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Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jimmy R Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:56
CPC Classifications
B; B63; B63B; B63B21/00; B63B21/56; B63B21/66; G; G01; G01V; G01V1/00; G01V1/38; G01V1/3817; G01V1/3826
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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |