US3090664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft polymerizing an unsaturated organic acid or salt thereof onto a nitrogen containing polymer substrate
Assignee: EIDP Inc
•
Filing: 1958-03-31
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Granted: 1963-05-21
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Edward T Cline
- 👤 Tanner David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:35
CPC Classifications
C; C08; C08F; C08F283/00; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
THE PROCESS OF FORMING A GRAFT COPOLYMER WHICH COMPRISES CONTACTING A MEMBER OF THE GROUP CONSISTING OF POLYMERIZABLE UNSATURATED ORGANIC ACIDS AND THE SALTS THEREOF WITH A SUBSTRATE SHAPED FROM A NITROGEN-CONTAINING POLYMER OF THE GROUP CONSISTING OF POLYAMIDES, POLYSULFONAMIDES, POLYUREAS AND POLYURETHANES ACTIVATED BY MEANS OF ULTRAVIOLET LIGHT HAVING A RADIATION INTENSITY
Claim 2
Dependent Claim
53 words
THE PROCESS OF FORMING A GRAFT COPOLYMER WHICH COMPRISES CONTACTING A MEMBER OF THE GROUP CONSISTING OF POLYMERIZABLE UNSATURATED ORGANIC ACIDS AND THE SALTS THEREOF WITH A SUBSTRATE SHAPED FROM A NITROGEN-CONTAINING POLYMER OF THE GROUP CONSISTING OF POLYAMIDES, POLYSULFONAMIDES, POLYUREAS AND POLYURETHANES ACTIVATED BY MEANS OF ULTRAVIOLET LIGHT HAVING A RADIATION INTENSITY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |