US2636908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of halocarbons
Assignee: MW Kellogg Co
•
Filing: 1949-06-10
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Granted: 1953-04-28
•
Expires: 1969-06-10
Abstract
No abstract record available.
Inventors
- 👤 Albert L Dittman
- 👤 John M Wrightson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:26
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42; Y; Y10; Y10S; Y10S526/00; Y10S526/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR STABILIZING A HALOCARBON OIL PREPARED BY CRACKING AT A TEMPERATURE BETWEEN ABOUT 330* C. AND ABUT 600* C. A RELATIVELY HIGH MOLECULAR WEIGHT POLYMER OF TRIFLUOROCHLORETHYLENE HAVING A MAXIMUM SOFTENING POINT NOT GREATER THAN 200* C. TO PRODUCE A LOW-ER MOLECULAR WEIGHT OIL AND MONOMER AND SEPARATING SAID OIL FROM MONOMER, WHICH COMPRISES CHLORINATING AT LEAST A PORTION OF THE SEPARATED OIL WITH FREE CHLORINE AT A TEMPERATURE BETWEEN ABOUT 80* C. AND ABOUT 200* C., SUBSEQUENTLY FLUORINATING THE CHLORINATED OIL WITH CHLORINE TRIFLUORIDE TO SUBSTANTIALLY SATURATE SAID OIL
Claim 2
Dependent Claim
92 words
A PROCESS FOR STABILIZING A HALOCARBON OIL PREPARED BY CRACKING AT A TEMPERATURE BETWEEN ABOUT 330* C. AND ABUT 600* C. A RELATIVELY HIGH MOLECULAR WEIGHT POLYMER OF TRIFLUOROCHLORETHYLENE HAVING A MAXIMUM SOFTENING POINT NOT GREATER THAN 200* C. TO PRODUCE A LOW-ER MOLECULAR WEIGHT OIL AND MONOMER AND SEPARATING SAID OIL FROM MONOMER, WHICH COMPRISES CHLORINATING AT LEAST A PORTION OF THE SEPARATED OIL WITH FREE CHLORINE AT A TEMPERATURE BETWEEN ABOUT 80* C. AND ABOUT 200* C., SUBSEQUENTLY FLUORINATING THE CHLORINATED OIL WITH CHLORINE TRIFLUORIDE TO SUBSTANTIALLY SATURATE SAID OIL
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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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |