Patent US3285897A successfully refreshed from Google Patents.
US3285897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing solid poly
Assignee: Union Carbide Corp
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Filing: 1960-12-30
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Granted: 1966-11-15
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 Edward M Sullivan
- 👤 Frederick P Reding
- 👤 Edgar W Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:43
CPC Classifications
C; C08; C08F; C08F16/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR THE PRODUCTION OF SOLID HOMOPOLYMERS OF ALLYL ALCOHOL WHICH COMPRISES CONTACTING ALLYL ALCOHOL WITH A CATALYTIC AMOUNT OF FREE-RADICAL POLYMERIZATION CATALYST AT A PRESSURE OF FROM ABUT 15,000 POUNDS PER SQUARE INCH TO ABOUT 15.25,000 POUNDS PER SQUARE INCH AND AT A TEMPERATURE OF FROM ABOUT -80* C. TO ABOUT +100*C.
Claim 2
Dependent Claim
54 words
A PROCESS FOR THE PRODUCTION OF SOLID HOMOPOLYMERS OF ALLYL ALCOHOL WHICH COMPRISES CONTACTING ALLYL ALCOHOL WITH A CATALYTIC AMOUNT OF FREE-RADICAL POLYMERIZATION CATALYST AT A PRESSURE OF FROM ABUT 15,000 POUNDS PER SQUARE INCH TO ABOUT 15.25,000 POUNDS PER SQUARE INCH AND AT A TEMPERATURE OF FROM ABOUT -80* C. TO ABOUT +100*C.
References Cited (Backward Citations)
US2541155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |