US3099636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric acid salts of alkylaminoethyl methacrylate
Assignee: EIDP Inc
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Filing: 1960-05-17
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Granted: 1963-07-30
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Expires: 1980-05-17
Abstract
No abstract record available.
Inventors
- 👤 Skiles Benjamin Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:19
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A WATER SOLUTION OF A POLYMER, SAID POLYMER BEING CHARACTERIZED BY BEING WATER SOLUBLE TO PROVIDE A 1% AQUEOUS SOLUTION HAVING A VISOSITY AT 25*C. OF AT LEAST 500 CENTIPOISES MEASURED WITH A BROOKFIELD VISCOMETER ROTAING AT 20 R.P.M. PREPARED NY POLYMERIZING A C2 TO C5 ALKANOIC ACID SALT OF A METHYACRYLIC ACID ESTER HAVING THE STRUCTURE
Claim 2
Dependent Claim
57 words
A WATER SOLUTION OF A POLYMER, SAID POLYMER BEING CHARACTERIZED BY BEING WATER SOLUBLE TO PROVIDE A 1% AQUEOUS SOLUTION HAVING A VISOSITY AT 25*C. OF AT LEAST 500 CENTIPOISES MEASURED WITH A BROOKFIELD VISCOMETER ROTAING AT 20 R.P.M. PREPARED NY POLYMERIZING A C2 TO C5 ALKANOIC ACID SALT OF A METHYACRYLIC ACID ESTER HAVING THE STRUCTURE
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |