US2574457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of alkyl sulfenyl trithiocarbonates
Assignee: Phillips Petroleum Co
•
Filing: 1947-08-05
•
Granted: 1951-11-13
•
Expires: 1967-08-05
Abstract
No abstract record available.
Inventors
- 👤 Philip M Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:55
CPC Classifications
C; C07; C07C; C07C329/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
AN ALKYL SULFENYL TRITHIOCARBONATE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
AN ALKYL SULFENYL TRITHIOCARBONATE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2021726A
Cited
US2123082A
Cited
US2250545A
Cited
US2415971A
Cited
US2403709A
Cited
US2390713A
Cited
US2458075A
Cited
US2445142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |