US3210310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of alkylidene bisacrylamide and ethylenic monomers with calcium chloride
Assignee: Sinclair Research Inc
•
Filing: 1961-05-31
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Granted: 1965-10-05
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Don R Holbert
- 👤 Robert O Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:18
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/504; C09K8/506; C09K8/508; C09K8/5083; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/56; C08F20/60; Y; Y10; Y10S; Y10S507/00; Y10S507/903; Y10S507/935; Y10S507/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A WEIGHTED, AQUEOUS SOLUTION OF A RESIN-FORMING MATERIAL CONSISTING ESSENTIALLY OF WATER, FROM ABOUT 5 WEIGHT PERCENT TO ITS LIMIT OF SOLUBITLITY OF A MIXTURE OF ABOUT 1 TO 25 WEIGHT PERCENT OF N,N''-METHYLENEBISACRYLAMIDE, AND ABOUT 75 TO 99 WEIGHT PERCENT OF ACRYLAMIDE AND A REDOX CATALYST SYSTEM, SAID AQUEOUS SOLUTION INCLUDING FROM ABOUT 15 TO 30 WEIGHT PERCENT OF CALCIUM CHLORIDE BASED ON THE WATER.
Claim 2
Dependent Claim
66 words
A WEIGHTED, AQUEOUS SOLUTION OF A RESIN-FORMING MATERIAL CONSISTING ESSENTIALLY OF WATER, FROM ABOUT 5 WEIGHT PERCENT TO ITS LIMIT OF SOLUBITLITY OF A MIXTURE OF ABOUT 1 TO 25 WEIGHT PERCENT OF N,N''-METHYLENEBISACRYLAMIDE, AND ABOUT 75 TO 99 WEIGHT PERCENT OF ACRYLAMIDE AND A REDOX CATALYST SYSTEM, SAID AQUEOUS SOLUTION INCLUDING FROM ABOUT 15 TO 30 WEIGHT PERCENT OF CALCIUM CHLORIDE BASED ON THE WATER.
References Cited (Backward Citations)
US2073413A
Cited
US2279262A
Cited
US2837492A
Cited
US2805722A
Cited
US2801985A
Cited
US2963457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |