US3249439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyhydroxyether photographic films
Assignee: Union Carbide Corp
•
Filing: 1964-11-25
•
Granted: 1966-05-03
•
Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Bugel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:24
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/795; Y; Y10; Y10S; Y10S430/00; Y10S430/14; Y10S430/156; Y10S430/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A DIMENSIONALLY STABLE AND CURL-FREE PHOTOSENSITIVE FILM COMPRISING A FILM SUPPORT OF A THERMOPLASTIC POLY(HYDROXYETHER) CONTAINING RECURRING UNITS HAVING THE FORMULA
Claim 2
Dependent Claim
21 words
A DIMENSIONALLY STABLE AND CURL-FREE PHOTOSENSITIVE FILM COMPRISING A FILM SUPPORT OF A THERMOPLASTIC POLY(HYDROXYETHER) CONTAINING RECURRING UNITS HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |