US3300327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating to prevent heat sealing of polyolefin surfaces
Assignee: Eastman Kodak Co
•
Filing: 1963-02-18
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Granted: 1967-01-24
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Expires: 1983-02-18
Abstract
No abstract record available.
Inventors
- 👤 Richard L Smith
- 👤 Ronald K Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:44
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/052; C08J2401/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
AN ARTICLE COMPRISING A STRUCTURE HAVING A POLYOLEFIN SURFACE WITH A COATING THEREON COMPRISING A CELLULOSE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF THE LOWER FATTY ACID ESTERS OF CELLULOSE, ETHYL CELLULOSE, ETHYL HYDROXYETHYL CELLULOSE AND NITROCELLULOSE, CROSSLINKED WITH HEXAMETHOXYMETHYLMELAMINE.
Claim 2
Dependent Claim
40 words
AN ARTICLE COMPRISING A STRUCTURE HAVING A POLYOLEFIN SURFACE WITH A COATING THEREON COMPRISING A CELLULOSE DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF THE LOWER FATTY ACID ESTERS OF CELLULOSE, ETHYL CELLULOSE, ETHYL HYDROXYETHYL CELLULOSE AND NITROCELLULOSE, CROSSLINKED WITH HEXAMETHOXYMETHYLMELAMINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |