Patent US2690981A successfully refreshed from Google Patents.
US2690981A
Expired / Lapsed
US
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Plasticized polyvinyl chloride compositions
Assignee: EIDP Inc
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Filing: 1952-03-15
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Granted: 1954-10-05
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Expires: 1972-03-15
Abstract
No abstract record available.
Inventors
- 👤 Funk Henry Clarke
- 👤 Reger Marquis Brentwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:59
CPC Classifications
D; D06; D06N; D06N3/00; D06N3/04; D06N3/06; C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06; C08L; C08L25/00; C08L25/02; C08L25/16; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/273
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
23 words
A BOOKBINDING MATERIAL TO WHICH DRYINGOILPRINTING INKS WILL FIRMLY ANCHOR, COMPRISING A FABRIC BASE WITH AN ADHERENT COATING OF THE FOLLOWING APPROXIMATE COMPOSITION:
Claim 2
Dependent Claim
1 words
0
Claim 3
Dependent Claim
14 words
0 SUPERPOSED OVER SAID COATING A SECOND ADHERENT COATING OF THE FOLLOWING APPROXIMATE COMPOSITION
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) | 1957-10-04 | 1958-04-05 | 1958-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-04 | 1962-04-05 | 1962-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-04 | 1966-04-05 | 1966-10-05 | $7700.00 | Window Closed / Lapsed |