Patent US3679451A successfully refreshed from Google Patents.
US3679451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonglare coating for surfaces of tv tubes and the like and such coated surfaces
Assignee: Marks Polarized Corp
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Filing: 1970-02-13
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Granted: 1972-07-25
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Expires: 1990-02-13
Abstract
Abstract COATINGS FOR DECREASING REFLECTED IMAGES FROM THE SURFACE OF A TRANSPARENT SHEET USED FOR DISPLAYS OF TELEVISION, RADAR SCOPES, REAR PROJECTION SCREENS, PICTURE GLASS AND THE LIKE ARE DISCLOSED. THESE COATINGS, WHICH ARE COMPRISED OF AT LEAST TWO INTERMIXED INCOMPATIBLE DISCRETE PLYMERIC BODIES, ENHANCE IMAGE CONTRAST BY DECREASING THE REFECTIONS OF EXTERNAL OBJECTS AND AMBIENT LIGHT FROM THE FACE OF THE DISPLAY BY ABSORPTION AND SCATTERING WHILE TRANSMITTING LIGHT IMAGES WITH GOOD RESOLUTION.
Inventors
- 👤 Alvin M Marks
- 👤 Mortimer M Marks
- 👤 Arthur P Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:01
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/896; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |