US2553771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing n-trichloromethylthioimides
Assignee: Standard Oil Development Co
•
Filing: 1948-09-23
•
Granted: 1951-05-22
•
Expires: 1968-09-23
Abstract
No abstract record available.
Inventors
- 👤 Allen R Kittleson
- 👤 Howard L Yowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:34
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; C07D207/00; C07D207/46; C07D207/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A METHOD FOR PREPARING N-TRICHLOROMETHYLTHIO IMIDE COMPOUNDS CORRESPONDING TO THE FORMULA
Claim 2
Independent Claim
11 words
A METHOD FOR PREPARING N-TRICHLOROMETHYLTHIO IMIDE COMPOUNDS CORRESPONDING TO THE FORMULA
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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |