US2549892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated propionyl halides and a method of making them
Assignee: Akzo Nobel UK PLC
•
Filing: 1948-06-04
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Granted: 1951-04-24
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Expires: 1968-06-04
Abstract
No abstract record available.
Inventors
- 👤 David W Chaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:40
CPC Classifications
C; C07; C07C; C07C53/00; C07C53/38; C07C53/46; C07C53/50; C07C51/00; C07C51/58; Y; Y10; Y10S; Y10S204/00; Y10S204/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A FLUORINATED PROPIONYL HALIDE OF THE FORMULA CF2CLCCLXCOX, WHERE X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE.
Claim 2
Dependent Claim
20 words
A FLUORINATED PROPIONYL HALIDE OF THE FORMULA CF2CLCCLXCOX, WHERE X IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE AND FLUORINE.
References Cited (Backward Citations)
US2062743A
Cited
US2292129A
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US2427624A
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US2361552A
Cited
US2411982A
Cited
US2439505A
Cited
US2456768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |