US3589905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inking properties of matte-surfaced polyester sheeting
Assignee: Eastman Kodak Co
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Filing: 1968-01-22
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Granted: 1971-06-29
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Expires: 1988-01-22
Abstract
Abstract THE ERASEABILITY OF MATTE-SURFACED POLYESTER SHEETING USEFUL IN ENGINEERING DRAFTING IS SIGNIFICANTLY IMPROVED BY LAYING DOWN DIRECTLY ON THE MATTE SURFACE EITHER A THIN LAYER OF A POLYMERIC TERGEL OR A TWO-LAYER CONFIGURATION, THE FIRST LAYER BEING A TERPOLYMER BASED ON VINYLIDENE CHLORIDE, AN UNSATURATED ESTER, AND AN UNSATURATED CARBOXYLIC ACID, AND THE SECOND LAYER BEING A VERY THIN GELATIN LAYER.
Inventors
- 👤 Albert J Reedy
- 👤 Walter R White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:56
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; C; C08; C08J; C08J7/00; C08J7/04; C08J7/043; G03C1/91; G03C1/93; G03C1/95; G03F; G03F1/00; G03F1/68; C08J2367/00; C08J2367/02; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31725; Y10T428/3175; Y10T428/31754; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 0
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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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |