US3295406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color grading apparatus
Assignee: Magnuson Corp
•
Filing: 1963-02-21
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Granted: 1967-01-03
•
Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Traver J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:40
CPC Classifications
B; B07; B07C; B07C5/00; B07C5/34; B07C5/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
IN COLOR GRADING APPARATUS THE COMBINATION OF AN ELECTRIC DISCHARGE DEVICE COMPRISING AN ELONGATED VITREOUS TUBE HAVING AN ATMOSPHERE OF RARIFIED GAS, SAID TUBE BEING OF SUBSTANTIALLY CIRCULAR SHAPE, A HOUSING HAVING A CAVITY FOR SAID TUBE, HEAT INSULATING MATERIAL POSITIONED ON THE OUTSIDE OF SAID HOUSING AND COVING THE SIDES AND BOTTOM OF SAID HOUSING, A SUBSTANTIALLY CIRCULAR WALL STRUCTURE IN SAID CAVITY SURROUNDED BY SAID ELECTRIC DISCHARGE DEVICE, LIGHT FILTER MEANS POSITIONED IN SAID WALL STRUCTURE FOR SELECTING SUBSTANTIALLY MONOCHROMATIC LINES FROM THE LIGHT PRODUCED BY SAID ELECTRIC DISCHARGE DEVICE, WALL STRUCTURE IN THE TOP OF SAID HOUSING DEFINING A WELL INTO WHICH THE SAMPLE TO BE COLOR GRADED IS INSERTED, THE BOTTOM OF SAID WELL BEING OPEN SO THAT LIGHT PRODUCED BY SAID ELECTRIC DISCHARGE DEVICE IMPINGES SAID SAMPLE AND IS REFLECTED FROM SAID SAMPLE INTO SAID FILTER MEANS, A LIGHT SENSITIVE CELL POSITIONED UNDER SAID FILTER MEANS TO RECEIVE LIGHT REFLECTED FROM SAID SAMPLE AND PASSING THROUGH SAID FILTER MEANS, AND AN INDICATING DEVICE CONNECTED TO SAID LIGHT SENSITIVE CELL FOR INDICATING THE MAGNITUDE OF LIGHT ENERGIZATION OF SAID CELL.
Claim 2
Dependent Claim
184 words
IN COLOR GRADING APPARATUS THE COMBINATION OF AN ELECTRIC DISCHARGE DEVICE COMPRISING AN ELONGATED VITREOUS TUBE HAVING AN ATMOSPHERE OF RARIFIED GAS, SAID TUBE BEING OF SUBSTANTIALLY CIRCULAR SHAPE, A HOUSING HAVING A CAVITY FOR SAID TUBE, HEAT INSULATING MATERIAL POSITIONED ON THE OUTSIDE OF SAID HOUSING AND COVING THE SIDES AND BOTTOM OF SAID HOUSING, A SUBSTANTIALLY CIRCULAR WALL STRUCTURE IN SAID CAVITY SURROUNDED BY SAID ELECTRIC DISCHARGE DEVICE, LIGHT FILTER MEANS POSITIONED IN SAID WALL STRUCTURE FOR SELECTING SUBSTANTIALLY MONOCHROMATIC LINES FROM THE LIGHT PRODUCED BY SAID ELECTRIC DISCHARGE DEVICE, WALL STRUCTURE IN THE TOP OF SAID HOUSING DEFINING A WELL INTO WHICH THE SAMPLE TO BE COLOR GRADED IS INSERTED, THE BOTTOM OF SAID WELL BEING OPEN SO THAT LIGHT PRODUCED BY SAID ELECTRIC DISCHARGE DEVICE IMPINGES SAID SAMPLE AND IS REFLECTED FROM SAID SAMPLE INTO SAID FILTER MEANS, A LIGHT SENSITIVE CELL POSITIONED UNDER SAID FILTER MEANS TO RECEIVE LIGHT REFLECTED FROM SAID SAMPLE AND PASSING THROUGH SAID FILTER MEANS, AND AN INDICATING DEVICE CONNECTED TO SAID LIGHT SENSITIVE CELL FOR INDICATING THE MAGNITUDE OF LIGHT ENERGIZATION OF SAID CELL.
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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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |