US2749369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorinated ether and method of production
Assignee: Airco Inc
•
Filing: 1952-05-28
•
Granted: 1956-06-05
•
Expires: 1972-05-28
Abstract
No abstract record available.
Inventors
- 👤 Ashton M Lyon
- 👤 Julius G Shukys
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:21
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
TRIFLUOROISOPROPYL VINYL ETHER HAVING THE FORMULA,
Claim 2
Dependent Claim
6 words
TRIFLUOROISOPROPYL VINYL ETHER HAVING THE FORMULA,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |