US3065280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of methyl chloroform
Assignee: PITTSBURGH PLATE GIASS Co
•
Filing: 1960-09-19
•
Granted: 1962-11-20
•
Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Harvey J Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:18
CPC Classifications
C; C07; C07C; C07C19/00; C07C19/01; C07C19/043; C07C19/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE METHOD OF PRODUCING METHYLCHLOROFORM WHICH COMPRISES SIMULTANEOUSL PREPARING 1,1,2-TRICHLORETHANE AND HYDROGEN CHLORIDE BY CHLORINATION, SEPARATING THE TRICHLOROETHANE AND HYDROGEN CHLORIDE, DEHYDROCHLORINATING SEPARATED TRICHLOROETHANE TO VINYLIDENE CHLORIDE, AND REACTING SUCH VINYLIDENE CHLORIDE WITH HYDROGEN CHLORIDE OBTAINED FROM THE CHLORINATION TO PRODUCE METHYLCHLOROFORM.
Claim 2
Independent Claim
42 words
THE METHOD OF PRODUCING METHYLCHLOROFORM WHICH COMPRISES SIMULTANEOUSL PREPARING 1,1,2-TRICHLORETHANE AND HYDROGEN CHLORIDE BY CHLORINATION, SEPARATING THE TRICHLOROETHANE AND HYDROGEN CHLORIDE, DEHYDROCHLORINATING SEPARATED TRICHLOROETHANE TO VINYLIDENE CHLORIDE, AND REACTING SUCH VINYLIDENE CHLORIDE WITH HYDROGEN CHLORIDE OBTAINED FROM THE CHLORINATION TO PRODUCE METHYLCHLOROFORM.
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) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |