US3204248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering system
Assignee: ExxonMobil Upstream Research Co
•
Filing: 1963-05-01
•
Granted: 1965-08-31
•
Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 Warren A Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:47
CPC Classifications
G; G06; G06E; G06E3/00; G06E3/001; G01; G01V; G01V1/00; G01V1/28; G01V1/36; G01V1/364
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A DEVICE FOR OPTICALLY OBTAINING THE CONVOLUTION OF A FIRST FUNCTION AND A SECOND FUNCTION WHICH COMPRISES: (A) A FIRST AREA LIGHT SOURCE; (B) A SECOND AREA LIGHT SOURCE SPACED FROM SAID FIRST LIGHT SOURCE AND ESSENTIALLY PARALLEL THERETO; (C) MEANS FOR HOLDING A PHOTOSENSITIVE FILM BETWEEN SAID FIRST LIGHT SOURCE AND SAID SECOND LIGHT SOURCE AND PARALLEL TO SUCH SOURCES; (D) A FIRST LIGHT SHIELD HAVING AN OPENING AND PLACED BETWEEN SAID FIRST LIGHT SOURCE AND SAID MEANS FOR HOLDING SAID PHOTOSENSITIVE RECORDING MEDIUM;
Claim 2
Independent Claim
85 words
A DEVICE FOR OPTICALLY OBTAINING THE CONVOLUTION OF A FIRST FUNCTION AND A SECOND FUNCTION WHICH COMPRISES: (A) A FIRST AREA LIGHT SOURCE; (B) A SECOND AREA LIGHT SOURCE SPACED FROM SAID FIRST LIGHT SOURCE AND ESSENTIALLY PARALLEL THERETO; (C) MEANS FOR HOLDING A PHOTOSENSITIVE FILM BETWEEN SAID FIRST LIGHT SOURCE AND SAID SECOND LIGHT SOURCE AND PARALLEL TO SUCH SOURCES; (D) A FIRST LIGHT SHIELD HAVING AN OPENING AND PLACED BETWEEN SAID FIRST LIGHT SOURCE AND SAID MEANS FOR HOLDING SAID PHOTOSENSITIVE RECORDING MEDIUM;
References Cited (Backward Citations)
US1198600A
Cited
US2088297A
Cited
US2402660A
Cited
US2488955A
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US2460350A
Cited
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US2839149A
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US2710661A
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US2792740A
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US2712415A
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US2807198A
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US2989891A
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US2985499A
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US3020800A
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US3020805A
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US2951736A
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US2994863A
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US3050731A
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US2989910A
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US3041924A
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US3111887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |