US2676983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing monochlorodifluoro acetyl fluoride
Assignee: EIDP Inc
•
Filing: 1952-02-08
•
Granted: 1954-04-27
•
Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 Victor R Hurka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:32
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE PROCESS WHICH COMPRISES OXIDIZING
Claim 2
Dependent Claim
5 words
THE PROCESS WHICH COMPRISES OXIDIZING
References Cited (Backward Citations)
US1976265A
Cited
US2062743A
Cited
US2257868A
Cited
US2378048A
Cited
US2480467A
Cited
US2567011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |