US2831037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of bicyclo-olefins
Assignee: Universal Oil Products Co
•
Filing: 1954-06-01
•
Granted: 1958-04-15
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Schmerling Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
C; C07; C07C; C07C13/00; C07C13/28; C07C13/32; C07C13/39; C07C13/42; C07C2/00; C07C2/02; C07C2/04; C07C2521/00; C07C2521/02; C07C2521/04; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206; C07C2527/1213; C07C2527/128; C07C2527/132; C07C2602/00; C07C2602/36; C07C2602/42; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR THE POLYMERIZATION OF A BICYCLO-OLEFIN WHICH COMPRISES HEATING SAID OLEFIN AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 50*C. TO ABOUT 250*C. IN THE PRESENCE OF A CATALYST COMPRISING ALUMINA COMPOSITED WITH A HALOGEN COMPOUND, THE HALOGEN OF SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF FLUORINE AND CHLORINE, AND RECOVERING THE POLYMERIZED HYDROCARBON.
Claim 2
Dependent Claim
59 words
A PROCESS FOR THE POLYMERIZATION OF A BICYCLO-OLEFIN WHICH COMPRISES HEATING SAID OLEFIN AT A TEMPERATURE IN THE RANGE OF FROM ABOUT 50*C. TO ABOUT 250*C. IN THE PRESENCE OF A CATALYST COMPRISING ALUMINA COMPOSITED WITH A HALOGEN COMPOUND, THE HALOGEN OF SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF FLUORINE AND CHLORINE, AND RECOVERING THE POLYMERIZED HYDROCARBON.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |