US2828318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of ethylene sulfide
Assignee: Eastman Kodak Co
•
Filing: 1957-03-21
•
Granted: 1958-03-25
•
Expires: 1977-03-21
Abstract
No abstract record available.
Inventors
- 👤 Delbert D Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:04
CPC Classifications
C; C07; C07D; C07D327/00; C07D327/02; C07D327/04; C07D331/00; C07D331/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
27 words
A PROCESS FOR THE PRODUCTION OF ETHYLENE SULFIDE COMPRISING REACTING PHOSGENE AND 2-MERCAPTOETHANOL TO FORM MONOTHIOLETHYLENE CARBONATE, FOLLOWED BY HEATING THE MONOTHIOLETHYLENE CARBONATE AT ITS DECOMPOSITION TEMPERATURE.
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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |