US3142528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanometric recording systems
Assignee: Schlumberger Well Surveying Corp
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Filing: 1962-10-23
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Granted: 1964-07-28
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Expires: 1982-10-23
Abstract
No abstract record available.
Inventors
- 👤 John A Stafford
- 👤 John Robert L St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:28
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A RECORDER HAVING A GALVANOMETER FOR REFLECTING AT LEAST ONE OBJECT-LIGHT BEAM INCLUDING AT LEAST TWO DISTINCT COLOR BANDS, THE COMBINATION COMPRISING: MEANS POSITIONED IN THE PATH OF THE REFLECTED BEAM FOR SEGREGATING SAID COLOR BANDS INTO SEPARATE LIGHT CHANNELS, A DISTINCT RECORDING MEDIUM FOR EACH CHANNEL, FIRST MOVABLE FILTER MEANS ABSORBING ONE OF SAID COLOR BANDS, SECOND MOVABLE FILTER MEANS ABSORBING THE OTHER OF SAID COLOR BANDS, AND MEANS FOR SELECTIVELY INSERTING SAID FIRST AND SAID SECOND FILTER MEANS IN THE PATH OF SAID OBJECT BEAM THEREBY RECORDING SAID REFLECTED BEAM ON EITHER OR BOTH OF SAID RECORDING MEDIA.
Claim 2
Dependent Claim
101 words
IN A RECORDER HAVING A GALVANOMETER FOR REFLECTING AT LEAST ONE OBJECT-LIGHT BEAM INCLUDING AT LEAST TWO DISTINCT COLOR BANDS, THE COMBINATION COMPRISING: MEANS POSITIONED IN THE PATH OF THE REFLECTED BEAM FOR SEGREGATING SAID COLOR BANDS INTO SEPARATE LIGHT CHANNELS, A DISTINCT RECORDING MEDIUM FOR EACH CHANNEL, FIRST MOVABLE FILTER MEANS ABSORBING ONE OF SAID COLOR BANDS, SECOND MOVABLE FILTER MEANS ABSORBING THE OTHER OF SAID COLOR BANDS, AND MEANS FOR SELECTIVELY INSERTING SAID FIRST AND SAID SECOND FILTER MEANS IN THE PATH OF SAID OBJECT BEAM THEREBY RECORDING SAID REFLECTED BEAM ON EITHER OR BOTH OF SAID RECORDING MEDIA.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |