US3227770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of quaternary carbon-containing monoolefins by thermal dehydrohalogenation
Assignee: Sinclair Research Inc
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Filing: 1962-12-26
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Granted: 1966-01-04
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Emmett H Burk
- 👤 William D Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:20
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/26; C07C1/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PROCESS FOR THE PRODUCTION OF QUARTERNARY CARBONCONTAINING MONOOLEFINS WHICH COMPRISES THERMALLY DEHYDROHALOGENATING IN THE VAPOR FORM AT A TEMPERATURE OF ABOUT 400 TO 650*C. A HALOGENATED HYDROCAROBON HAVING THE STRUCTRAL FORMULA:
Claim 2
Dependent Claim
32 words
A PROCESS FOR THE PRODUCTION OF QUARTERNARY CARBONCONTAINING MONOOLEFINS WHICH COMPRISES THERMALLY DEHYDROHALOGENATING IN THE VAPOR FORM AT A TEMPERATURE OF ABOUT 400 TO 650*C. A HALOGENATED HYDROCAROBON HAVING THE STRUCTRAL FORMULA:
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |