Patent US3324017A successfully refreshed from Google Patents.
US3324017A
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Method for copolymerizing an alkylidene bisacrylamide and an ethylenic monomer employing radiation
Assignee: Sinclair Research Inc
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Filing: 1962-03-07
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Granted: 1967-06-06
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Expires: 1982-03-07
Abstract
No abstract record available.
Inventors
- 👤 Robert O Perry
- 👤 Don R Holbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/16; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/5083; F; F04; F04C; F04C2/00; F04C2/08; F04C2/10; F04C2/107; F04C2/1071; F04C2/1073; F04C2/1075; Y; Y10; Y10S; Y10S507/00; Y10S507/935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
IN A METHOD FOR COPOLYMERIZING A MIXTURE CONSISTING ESSENTIALLY OF (A) ABOUT 1 TO 25 WEIGHT PERCENT OF A MONOMERIC ALKYLIDENE BISACRYLAMIDE OF THE FORMULA
Claim 2
Dependent Claim
25 words
IN A METHOD FOR COPOLYMERIZING A MIXTURE CONSISTING ESSENTIALLY OF (A) ABOUT 1 TO 25 WEIGHT PERCENT OF A MONOMERIC ALKYLIDENE BISACRYLAMIDE OF THE FORMULA
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |