US2658930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyhaloalkanes
Assignee: Universal Oil Products Co
•
Filing: 1949-03-22
•
Granted: 1953-11-10
•
Expires: 1969-03-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:17
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/272; C07C17/275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS WHICH COMPRISES REACTING A MONOOLEFINIC HYDROCARBON AND A CARBON TETRAHALIDE IN THE PRESENCE OF FINELY DIVIDED IRON, WATER, AND A GAS-CONTAINING UNCOMBINED OXYGEN AT A TEMPERATURE FROM ABOUT 0* TO ABOUT 100* C. TO FORM A POLYHALOALKANE OF HIGHER MOLECULAR WEIGHT THAN SAID CARBON TETRAHALIDE.
Claim 2
Dependent Claim
47 words
A PROCESS WHICH COMPRISES REACTING A MONOOLEFINIC HYDROCARBON AND A CARBON TETRAHALIDE IN THE PRESENCE OF FINELY DIVIDED IRON, WATER, AND A GAS-CONTAINING UNCOMBINED OXYGEN AT A TEMPERATURE FROM ABOUT 0* TO ABOUT 100* C. TO FORM A POLYHALOALKANE OF HIGHER MOLECULAR WEIGHT THAN SAID CARBON TETRAHALIDE.
References Cited (Backward Citations)
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Cited
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US2519691A
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |