US3133201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color analyzing arrangement
Assignee: Individual
•
Filing: 1960-08-30
•
Granted: 1964-05-12
•
Expires: 1980-08-30
Abstract
No abstract record available.
Inventors
- 👤 Frank C Rock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:59
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/46; G01J3/50; G01J3/51
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A DEVICE FOR DETERMINING THE COLORIMETRIC PROPERTIES OF AN OBJECT INDEPENDENT OF ITS SIZE COMPRISING A RADIANT ENERGY-SENSITIVE-SIGNAL INDICATING MEANS; MEANS FOR SUBJECTING SAID RADIANT ENERGY-SENSITIVE-SIGNAL INDICATING MEANS TO RADIANT ENERGY REFLECTED FROM SAID OBJECT AT A FIRST RELATIVELY LONG WAVELENGTH, A SECOND SHORTER WAVELENGTH, AND A THIRD WAVELENGTH; AND MEANS FOR DIVIDING THE RESULTING SIGNAL OBTAINED BETWEEN SAID FIRST AND SECOND WAVELENGTHS BY THE SIGNAL OBTAINED BETWEEN SAID FIRST AND
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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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |