US2553961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated polarizer
Assignee: Individual
•
Filing: 1947-11-14
•
Granted: 1951-05-22
•
Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 John F Dreyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:50
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/30; G02B5/3025; G02B5/3033; G02B5/3016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A LAMINATED LIGHT-POLARIZING ARTICLE WHICH COMPRISES A PELLUCID BASE AT LEAST ONE FACE OF WHICH IS ANISOTROPIC AND ORIENTED TO THE LINES OF POLARIZATION, A FILM OF POLARIZING SUBSTANCE THE MOLECULES OF WHICH ARE ORIENTED TO THE ANISOTROPY OF SAID BASE AND IN STRONGLY ADHERENT DIRECT ATTRACTIVE RELATION TO SAID FACE, WHICH FILM IS FORMED BY APPLYING DYE LIQUID TO SAID BASE AND BRINGING IT INTO SOLID FORM BY PASSING IT THROUGH THE NEMATIC PHASE SO THAT MOLECULES OF THE DYE ARE ORIENTED, A PELLUCID COVER THE INNER FACE OF WHICH CONFORMS IN SHAPE TO SAID FACE OF THE BASE AND AN ADHESIVE BINDER CEMENTING SAID COVER TO SAID POLARIZING FILM.
Claim 2
Dependent Claim
111 words
A LAMINATED LIGHT-POLARIZING ARTICLE WHICH COMPRISES A PELLUCID BASE AT LEAST ONE FACE OF WHICH IS ANISOTROPIC AND ORIENTED TO THE LINES OF POLARIZATION, A FILM OF POLARIZING SUBSTANCE THE MOLECULES OF WHICH ARE ORIENTED TO THE ANISOTROPY OF SAID BASE AND IN STRONGLY ADHERENT DIRECT ATTRACTIVE RELATION TO SAID FACE, WHICH FILM IS FORMED BY APPLYING DYE LIQUID TO SAID BASE AND BRINGING IT INTO SOLID FORM BY PASSING IT THROUGH THE NEMATIC PHASE SO THAT MOLECULES OF THE DYE ARE ORIENTED, A PELLUCID COVER THE INNER FACE OF WHICH CONFORMS IN SHAPE TO SAID FACE OF THE BASE AND AN ADHESIVE BINDER CEMENTING SAID COVER TO SAID POLARIZING FILM.
References Cited (Backward Citations)
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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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |