US3340764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color measuring system using a light biased photocell
Assignee: Manufacturers Engineering and Equipment Corp
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Filing: 1963-06-24
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Granted: 1967-09-12
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Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 Bergson Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/50; G01J1/00; G01J1/10; G01J1/16; G01J3/51; G01J3/52; G01J3/524; G01J3/501
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
THE COMBINATION WITH REFLECTANCE OR TRANSMITTANCE MEASURING APPARATUS OF THE TYPE HAVING A SOURCE OF RADIANT ENERGY, MEANS FOR DIRECTING RADIANT ENERGY FROM SAID SOURCE ALONG A PAIR OF SEPARATE PATHS TO A REFERENCE STANDARD MATERIAL AND TO A SAMPLE, AN ADJUSTABLE APERTURE IN ONE OF SAID PATHS, FIRST RADIANT ENERGY RESPONSIVE MEANS POSITIONED TO RECEIVE RADIANT ENERGY FROM SAID REFERENCE STANDARD, AND SECOND RADIANT ENERGY RESPONSIVE MEANS POSITIONED TO RECEIVE RADIANT ENERGY FROM SAID SAMPLE; OF MEANS FOR DIRECTING AN AUXILIARY ADJUSTABLE AND, IN COMPARISON WITH THE RADIANT ENERGY ALONG THE PATH TO SAID SAMPLE, SMALL AMOUNT OF RADIANT ENERGY FROM SAID SOURCE TO THAT ONE OF SAID RADIANT ENERGY RESPONSIVE MEANS RECEIVING RADIANT ENERGY FROM SAID SAMPLE TO PROVIDE A LIGHT BIAS THEREFOR.
Claim 2
Dependent Claim
125 words
THE COMBINATION WITH REFLECTANCE OR TRANSMITTANCE MEASURING APPARATUS OF THE TYPE HAVING A SOURCE OF RADIANT ENERGY, MEANS FOR DIRECTING RADIANT ENERGY FROM SAID SOURCE ALONG A PAIR OF SEPARATE PATHS TO A REFERENCE STANDARD MATERIAL AND TO A SAMPLE, AN ADJUSTABLE APERTURE IN ONE OF SAID PATHS, FIRST RADIANT ENERGY RESPONSIVE MEANS POSITIONED TO RECEIVE RADIANT ENERGY FROM SAID REFERENCE STANDARD, AND SECOND RADIANT ENERGY RESPONSIVE MEANS POSITIONED TO RECEIVE RADIANT ENERGY FROM SAID SAMPLE; OF MEANS FOR DIRECTING AN AUXILIARY ADJUSTABLE AND, IN COMPARISON WITH THE RADIANT ENERGY ALONG THE PATH TO SAID SAMPLE, SMALL AMOUNT OF RADIANT ENERGY FROM SAID SOURCE TO THAT ONE OF SAID RADIANT ENERGY RESPONSIVE MEANS RECEIVING RADIANT ENERGY FROM SAID SAMPLE TO PROVIDE A LIGHT BIAS THEREFOR.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |