Patent US3740481A successfully refreshed from Google Patents.
Patent US3787488A successfully refreshed from Google Patents.
US3787488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylic compositions
Assignee: Milchem Inc
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Filing: 1972-04-17
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Granted: 1974-01-22
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Expires: 1992-04-17
Abstract
Abstract A PRODUCT OF THE PROCESS FOR PREPARING AN ACRYLIC COMPOSITION WHICH IS FORMED FROM ABOUT 80 TO 90 PARTS BY WEIGHT ACRYLIC ACID, ABOUT 7 TO 15 PARTS BY WEIGHT OF 2-MERCAPTOETHANOL, AND ABOUT 1.5 TO 5 PARTS BY WEIGHT AMMONIUM PERSULFATE. THE PRODUCED MATERIAL HAS PARTICULAR UTILITY AS A SCALE INHIBITOR IN HARD WATER ENVIRONMENTS.
Inventors
- 👤 G Greenfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:16
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/52; C09K8/528; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C08; C08F; C08F120/00; C08F120/02; C08F120/04; C08F120/06; C08F28/00; Y; Y10; Y10S; Y10S507/00; Y10S507/927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |