US3153105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel process for the molecular orientation of polymers
Assignee: Polaroid Corp
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Filing: 1961-07-10
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Granted: 1964-10-13
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Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Howard C Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:57
CPC Classifications
C; C08; C08B; C08B3/00; C08B3/06; C08J; C08J5/00; C08J5/18; C08K; C08K5/00; C08K5/0008; C08K5/0041; C08J2301/00; C08J2301/08; C08J2301/10; C08J2301/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
THE PROCESS OF MOLECULARLY ORIENTING A POLYMER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND POLYHYDROXYMETHYLENE, COMPRISING THE STEPS OF PREPARING THE TRIFLUOROACETATE DERIVATIVE OF SAID POLYMER, CASTING A FILM THEREOF, EXTENDING SAID FILM LINERALY, AND DEACETYLATING SAID FILM UNDER CONDITIONS WHICH DO NOT ALLOW RELAXATION.
Claim 2
Dependent Claim
46 words
THE PROCESS OF MOLECULARLY ORIENTING A POLYMER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND POLYHYDROXYMETHYLENE, COMPRISING THE STEPS OF PREPARING THE TRIFLUOROACETATE DERIVATIVE OF SAID POLYMER, CASTING A FILM THEREOF, EXTENDING SAID FILM LINERALY, AND DEACETYLATING SAID FILM UNDER CONDITIONS WHICH DO NOT ALLOW RELAXATION.
Claim 3
Dependent Claim
70 words
THE PROCESS OF PREPARING A LIGHT POLARIZER COMPRISING THE STEPS OF PREPARING THE TRIFLUOROACETATE DERIVATIVE OF A POLYMR SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND POLYHYDROXYMETHYLENE, CASTING A FILM OF SAID TRIFLUOROACETATE DERIVATIVE, MOLECULARLY ORIENTING SAID FILM BY EXTENDING LINEARLY, DEACETYLATING SAID ORIENTED FILM UNDER CONDITIONS WHICH DO NOT ALLOW RELAXATION, AND INCORPORATING IS SAID ORIENTED FILM A MATERIAL SELECTED FROM THE CLASS CONSISTING OF DICHORIC DYES AND STAINS.
Claim 4
Dependent Claim
70 words
THE PROCESS OF PREPARING A LIGHT POLARIZER COMPRISING THE STEPS OF PREPARING THE TRIFLUOROACETATE DERIVATIVE OF A POLYMR SELECTED FROM THE GROUP CONSISTING OF CELLULOSE AND POLYHYDROXYMETHYLENE, CASTING A FILM OF SAID TRIFLUOROACETATE DERIVATIVE, MOLECULARLY ORIENTING SAID FILM BY EXTENDING LINEARLY, DEACETYLATING SAID ORIENTED FILM UNDER CONDITIONS WHICH DO NOT ALLOW RELAXATION, AND INCORPORATING IS SAID ORIENTED FILM A MATERIAL SELECTED FROM THE CLASS CONSISTING OF DICHORIC DYES AND STAINS.
References Cited (Backward Citations)
US2049431A
Cited
US2121040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |