US2979541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of methane and carbon tetrachloride
Assignee: Stauffer Chemical Co
•
Filing: 1960-03-23
•
Granted: 1961-04-11
•
Expires: 1980-03-23
Abstract
No abstract record available.
Inventors
- 👤 Harold M Pitt
- 👤 Bender Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:46
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/23; C07C17/093; C07C17/10; C07C17/26; C07C17/263; C07C17/266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR THE PRODUCTION OF CHLOROFORM, VINYLIDENE CHLORIDE AND METHYL CHLORIDE COMPRISING REACTING CARBON TETRACHLORIDE AND METHANE AT TEMPERATURE OF BETWEEN ABOUT 400*C. AND 650*C. FOR A PERIOD OF BETWEEN ABOUT 0.1 AND 20 SECONDS, SAID REACTION TAKING PLACE IN A SMOOTH WALLED REACTION ZONE IN THE ABSENCE OF AN ADDED SURFACE MATERIAL.
Claim 2
Dependent Claim
54 words
A PROCESS FOR THE PRODUCTION OF CHLOROFORM, VINYLIDENE CHLORIDE AND METHYL CHLORIDE COMPRISING REACTING CARBON TETRACHLORIDE AND METHANE AT TEMPERATURE OF BETWEEN ABOUT 400*C. AND 650*C. FOR A PERIOD OF BETWEEN ABOUT 0.1 AND 20 SECONDS, SAID REACTION TAKING PLACE IN A SMOOTH WALLED REACTION ZONE IN THE ABSENCE OF AN ADDED SURFACE MATERIAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |