US3239496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing polymeric salts of aminoalkylacrylates
Assignee: ChampionX LLC
•
Filing: 1962-09-24
•
Granted: 1966-03-08
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Expires: 1982-09-24
Abstract
No abstract record available.
Inventors
- 👤 Myron J Jursich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:17
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; Y; Y10; Y10S; Y10S310/00; Y10S310/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PROCESS FOR THE PREPARATION OF A HIGH MOLECULAR WEIGHT POLYMERIC SALT WHICH CONTAINS REPEATING MONOMERIC UNITS OF THE FOLLOWING STRUCTURE:
Claim 2
Dependent Claim
21 words
A PROCESS FOR THE PREPARATION OF A HIGH MOLECULAR WEIGHT POLYMERIC SALT WHICH CONTAINS REPEATING MONOMERIC UNITS OF THE FOLLOWING STRUCTURE:
References Cited (Backward Citations)
US2204517A
Cited
US2471959A
Cited
US2723256A
Cited
US2765229A
Cited
US2964445A
Cited
US2838397A
Cited
US3099636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |