US3124639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
figure
Assignee: PC Inc
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Filing: —
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Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:33
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/30; G02B5/3008; G02B5/3025; G02B5/3033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A LIGHT POLARIZING STRUCTURE COMPRISING A MASS OF LIGHT TRANSMITTING FOAMED CELLULAR PLASTIC MATERIAL, A PLURALITY OF SUBSTANTIALLY FLAT GAS FILLED THIN WALLED BUBBLES JOINED TOGETHER AT THEIR CONTACTING SURFACES AND RANDOMLY DISPOSED TO FORM A FILM, SAID BUBBLES BEING FLATTENED IN THE SAME DIRECTION AND PARALLEL WITH THE PLANE OF THE FILM, SAID PLASTIC AND GAS HAVING ABRUPTLY DIFFERENT INDICIES OF REFRACTION AND A TRANSPARENT RIGID SUPPORTING MEMBER SECURED TO AT LEAST ONE SIDE OF THE FILM AND OVERLYING THE SAID FILM.
Claim 2
Dependent Claim
83 words
A LIGHT POLARIZING STRUCTURE COMPRISING A MASS OF LIGHT TRANSMITTING FOAMED CELLULAR PLASTIC MATERIAL, A PLURALITY OF SUBSTANTIALLY FLAT GAS FILLED THIN WALLED BUBBLES JOINED TOGETHER AT THEIR CONTACTING SURFACES AND RANDOMLY DISPOSED TO FORM A FILM, SAID BUBBLES BEING FLATTENED IN THE SAME DIRECTION AND PARALLEL WITH THE PLANE OF THE FILM, SAID PLASTIC AND GAS HAVING ABRUPTLY DIFFERENT INDICIES OF REFRACTION AND A TRANSPARENT RIGID SUPPORTING MEMBER SECURED TO AT LEAST ONE SIDE OF THE FILM AND OVERLYING THE SAID FILM.
References Cited (Backward Citations)
US2402176A
Cited
US2340476A
Cited
US2422008A
Cited
US2982178A
Cited
US2941965A
Cited
US2981980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |