US3205775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light polarizing structures incorporating uniaxial and linear polarizers
Assignee: Individual
•
Filing: 1961-06-19
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Granted: 1965-09-14
•
Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Alvin M Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:13
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/30; G02B5/3025; G02B5/3033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A LIGHT POLARIZING STRUCTURE COMPRISING A SHEET OF TRANSPARENT MATERIAL, A PLURALITY OF ELNGATED LIGHT POLARIZING PARTICLES DISPOSED THEREIN, SAID PARTICLES BEING IN PARALLEL ALIGNMENT WITH RESPECT TO EACH OTHER AND DISPOSED IN A DIRECTION NORMAL TO THE PLANE OF THE SHEET AND A LINEAR POLARIZER ON ONE SIDE THEREOF TO PROVIDE ASSYMMETRICAL ANGULAR LIGHT TRANSMITTANCE CHARACTERISTICS.
Claim 2
Dependent Claim
57 words
A LIGHT POLARIZING STRUCTURE COMPRISING A SHEET OF TRANSPARENT MATERIAL, A PLURALITY OF ELNGATED LIGHT POLARIZING PARTICLES DISPOSED THEREIN, SAID PARTICLES BEING IN PARALLEL ALIGNMENT WITH RESPECT TO EACH OTHER AND DISPOSED IN A DIRECTION NORMAL TO THE PLANE OF THE SHEET AND A LINEAR POLARIZER ON ONE SIDE THEREOF TO PROVIDE ASSYMMETRICAL ANGULAR LIGHT TRANSMITTANCE CHARACTERISTICS.
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |