Patent US2568950A successfully refreshed from Google Patents.
US2568950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latices from alkali metal catalyzed polymers
Assignee: Phillips Petroleum Co
•
Filing: 1948-11-29
•
Granted: 1951-09-25
•
Expires: 1968-11-29
Abstract
No abstract record available.
Inventors
- 👤 Willie W Crouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:52
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; Y; Y10; Y10S; Y10S516/00; Y10S516/924; Y10S516/927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE PREPARATION OF AA SYNTHETIC LATEX FROM A POLYMERIC MASS OBTAINED BY THE POLYMERIZATION OF AN UNSATURATED MATERIAL POLYMERIZABLE IN THE PRESENCE OF AN ALKALI METAL CATALYST WHICH COMPRISES TREATING SAID POLYMERIC MASS WITH AN ORGANIC ACID THE ALKALI METAL SALT OF WHICH IS AN EMULSIFYING AGENT AND ADMIXING THE TREATED MASS WITH WATER.
Claim 2
Dependent Claim
54 words
THE PREPARATION OF AA SYNTHETIC LATEX FROM A POLYMERIC MASS OBTAINED BY THE POLYMERIZATION OF AN UNSATURATED MATERIAL POLYMERIZABLE IN THE PRESENCE OF AN ALKALI METAL CATALYST WHICH COMPRISES TREATING SAID POLYMERIC MASS WITH AN ORGANIC ACID THE ALKALI METAL SALT OF WHICH IS AN EMULSIFYING AGENT AND ADMIXING THE TREATED MASS WITH WATER.
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) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |