Patent US4177856A successfully refreshed from Google Patents.
US3153147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas lift boils detection
Assignee: Atlantic Richfield Co
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Filing: 1961-05-09
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Granted: 1964-10-13
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Expires: 1981-05-09
Abstract
No abstract record available.
Inventors
- 👤 John S Bradley
- 👤 Thomas F Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:14
CPC Classifications
G; G01; G01V; G01V9/00; G01V9/007
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A METHOD OF EXPLORATION FOR SUBTERRANEAN PETROLIFEROUS DEPOSITS LOCATED BELOW A BODY OF WATER COMPRISING: (A) ESTABLISHING A PREDETERMINED SURVEY PATTERN IN THE AREA TO BE EXPLORED; (B) DETECTING A PHYSICAL PROPERTY OF THE SURFACE OF THE WATER IN SITU AT A PLURALITY OF LOCATIONS ALONG SAID SURVEY PATTERN; AND
Claim 2
Independent Claim
50 words
A METHOD OF EXPLORATION FOR SUBTERRANEAN PETROLIFEROUS DEPOSITS LOCATED BELOW A BODY OF WATER COMPRISING: (A) ESTABLISHING A PREDETERMINED SURVEY PATTERN IN THE AREA TO BE EXPLORED; (B) DETECTING A PHYSICAL PROPERTY OF THE SURFACE OF THE WATER IN SITU AT A PLURALITY OF LOCATIONS ALONG SAID SURVEY PATTERN; AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |