Patent US2630765A successfully refreshed from Google Patents.
Patent US2563524A successfully refreshed from Google Patents.
US2563524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polymers and copoly
Assignee: —
•
Filing: —
•
Granted: 1951-08-07
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Expires: 1968-08-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:32
CPC Classifications
C; C08; C08F; C08F12/00; C08F12/02; C08F12/32; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F212/32; C08F236/00; C08F236/02; C08F236/04; C08F236/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
THE PROCESS OF PRODUCING SYNTHETIC COMPOSITIONS WHICH COMPRISES FORMING AN AQUEOUS EMULSION OF A MIXTURE CONTAINING (1) ACENAPHTHYLENE, (2) ETHYL BENZENE, (3) AN EMULSIFYING AGENT FOR (1) AND (2), AND (4) A PEROXIDE CATALYST, AND HEATING THE EMULSION TO FROM 20* TO 80* C. UNTIL POLYMERIZATION OF THE ACENAPHTHYLENE IS ATTAINED.
Claim 2
Dependent Claim
51 words
THE PROCESS OF PRODUCING SYNTHETIC COMPOSITIONS WHICH COMPRISES FORMING AN AQUEOUS EMULSION OF A MIXTURE CONTAINING (1) ACENAPHTHYLENE, (2) ETHYL BENZENE, (3) AN EMULSIFYING AGENT FOR (1) AND (2), AND (4) A PEROXIDE CATALYST, AND HEATING THE EMULSION TO FROM 20* TO 80* C. UNTIL POLYMERIZATION OF THE ACENAPHTHYLENE IS ATTAINED.
References Cited (Backward Citations)
US2431373A
Cited
US2445181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |