US2836359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integration of electrical signals
Assignee: Texaco Inc
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Filing: 1954-11-01
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Granted: 1958-05-27
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Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 Roy P Mazzagatti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:01
CPC Classifications
G; G01; G01V; G01V5/00; G01V5/04; G01R; G01R23/00; G01R23/02; G01R23/06; G01R23/09
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
IN GEOPHYSICAL PROPECTING INVOLVING OBTAINING A LOG OF RANDOMLY OCCURRING EVENTS IN PULSE FORM, THE COMBINATION COMPRISING MEANS FOR CONTINUOUSLY OBTAINING ON A RECORDING MEDIUM A LOG OF SAID EVENTS OCCURRING IN SUCCESSION, MEANS FOR CONTINUOUSLY SCANNING SAID MEDIUM WITH A PLURALITY OF SEPARATE SCANNING MEANS SUBSTANTIALLY EQUALLY SPACED APART IN SEQUENCE SUCH THAT THE TIME DELAY BETWEEN SCANNING OF ANY GIVEN POINT ON SAID MEDIUM BY EACH PAIR OF IMMEDIATELY ADJACENT SCANNING MEANS IS SUBSTANTIALLY EQUAL TO A SELECTED INTEGRATING TIME CONSTANT, MEANS FOR OBTAINING FROM EACH OF SAID SCANNING MEANS AN OUTPUT OF INTELLEGENCE IN THE FORM OF AN ELECTRICAL CURRENT, AND MEANS FOR FEEDING SAID OUTPUT TO AN INTEGRATING CIRCUIT HAVING SAID SELECTED TIME CONSTANT AND THEREBY PRODUCING A FINAL LOG OF THE AVERAGE RATE OF OCCURRENCE OF SAID EVENTS.
References Cited (Backward Citations)
US2698875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |