US3575708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated regenerated cellulose hydrate film
Assignee: Kalle GmbH and Co KG
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Filing: 1969-11-03
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Granted: 1971-04-20
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Expires: 1989-11-03
Abstract
Abstract THIS INVENTION RELATES TO A REGENERATED CELLULOSE HYDRATE FILM HAVING A HOMOGENEOUS COATING THEREON COMPRISING AN ADHESIVE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF A PHENOPLAST AND AN AMINOPLAST IN ADMIXTURE WITH A VINYLIDENE CHLORIDE COPOLYMER CONTAINING ABOUT 0.01 TO 1 PRECNET BY WEIGHT, BASED UPON THE WEIGHT OF THE COPOLYMER, OF AT LEAST ONE ACCELERATOR COMPOUND SELECTED, FROM THE GROUP CONSISTING OF TRI- AND TETRAHYDROXY BENZOPHENONES.
Inventors
- 👤 Wilhelm Brandt
- 👤 Irmgard Bindrum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:50
CPC Classifications
C; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/048; C08J7/052; C09D161/00; C09D161/20; C09J; C09J161/00; C09J161/04; C09J161/06; C09J161/20; C08J2301/00; C08J2301/06; C08J2427/00; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891; Y10T428/31942; Y10T428/31949; Y10T428/31953
Claims Analysis
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |