US3081208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hazy polyvinyl fluoride film and process
Assignee: EIDP Inc
•
Filing: 1960-02-17
•
Granted: 1963-03-12
•
Expires: 1980-02-17
Abstract
No abstract record available.
Inventors
- 👤 Donald Thomas Bottorf
- 👤 James Lee Hecht
- 👤 Virgil Eugene James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08J2327/00; C08J2327/02; C08J2327/12; C08J2327/14; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24355
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A STRONG DURABLE, ORIENTED POLYVINYL FLUORIDE FILM HAVING A SMOOTH SURFACE CHARACTERIZED BY A RETICULAR STRUCTURE, SAID RECTICULAR STRUCTURE HAVING INSULAR AREAS OF RANDOM SIZE AND RANDOM SHAPE, THE NUMBER OF INSULAR AREAS IN SAID RETICULAR STRUCTURE RANGING FROM ABOUT 5 TO ABOUT 40 PER 0.01 SQUARE MILLIMETER, SAID FILM BEING FURTHER CHARACTERIZED BY A HAZE LEVEL OF AT LEAST 30%.
Claim 2
Dependent Claim
61 words
A STRONG DURABLE, ORIENTED POLYVINYL FLUORIDE FILM HAVING A SMOOTH SURFACE CHARACTERIZED BY A RETICULAR STRUCTURE, SAID RECTICULAR STRUCTURE HAVING INSULAR AREAS OF RANDOM SIZE AND RANDOM SHAPE, THE NUMBER OF INSULAR AREAS IN SAID RETICULAR STRUCTURE RANGING FROM ABOUT 5 TO ABOUT 40 PER 0.01 SQUARE MILLIMETER, SAID FILM BEING FURTHER CHARACTERIZED BY A HAZE LEVEL OF AT LEAST 30%.
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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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |