US3243820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording apparatus for seismic data
Assignee: ExxonMobil Upstream Research Co
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Filing: 1961-09-07
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Granted: 1966-03-29
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Expires: 1981-09-07
Abstract
No abstract record available.
Inventors
- 👤 Warren A Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:58
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/14; G01V; G01V1/00; G01V1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A RECORDING HEAD FOR CONVERTING A TRANSIENT ELECTRICAL SIGNAL INTO AN OSCILLATING LINEAR STEPPED-INTENSITY RAY OF LIGHT SUITABLE FOR PHOTOGRAPHIC TRACE RECORDING IN STACKED AMPLITUDE FORM WHICH COMPRISES: A HOUSING HAVING A SLIT ARRANGED FOR PASSAGE OF SAID RAY; AN ELONGATED SOURCE OF LIGHT; A STEPPED-DENSITY LIGHT FILTER; A REFLECTING MIRROR GALVANOMETER RESPONSIVE TO SAID SIGNAL; AND A SPHERICAL LENS; SAID SOURCE FILTER, LENS AND MIRROR BEING MOUNTED WITHIN SAID HOUSING SUCH THAT LIGHT FROM SAID SOURCE IS REFLECTED FROM SAID GALVANOMETER AND SUCH THAT A LINEAR STEPPEDINTENSITY IMAGE OF LIGHT IS PROJECTED ACROSS SAID SLIT, THE
Claim 2
Dependent Claim
97 words
A RECORDING HEAD FOR CONVERTING A TRANSIENT ELECTRICAL SIGNAL INTO AN OSCILLATING LINEAR STEPPED-INTENSITY RAY OF LIGHT SUITABLE FOR PHOTOGRAPHIC TRACE RECORDING IN STACKED AMPLITUDE FORM WHICH COMPRISES: A HOUSING HAVING A SLIT ARRANGED FOR PASSAGE OF SAID RAY; AN ELONGATED SOURCE OF LIGHT; A STEPPED-DENSITY LIGHT FILTER; A REFLECTING MIRROR GALVANOMETER RESPONSIVE TO SAID SIGNAL; AND A SPHERICAL LENS; SAID SOURCE FILTER, LENS AND MIRROR BEING MOUNTED WITHIN SAID HOUSING SUCH THAT LIGHT FROM SAID SOURCE IS REFLECTED FROM SAID GALVANOMETER AND SUCH THAT A LINEAR STEPPEDINTENSITY IMAGE OF LIGHT IS PROJECTED ACROSS SAID SLIT, THE
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |