US2803666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorine containing ethers and process for preparation thereof
Assignee: Honeywell International Inc
•
Filing: 1953-05-05
•
Granted: 1957-08-20
•
Expires: 1973-05-05
Abstract
No abstract record available.
Inventors
- 👤 Charles B Miller
- 👤 Woolf Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:22
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12; C07C43/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
THE LINEAR ETHER HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
THE LINEAR ETHER HAVING THE FORMULA:
References Cited (Backward Citations)
US2567569A
Cited
US2533133A
Cited
US2471829A
Cited
US2500388A
Cited
US2669182A
Cited
US2691052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |