US3213134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decyclization of fluorinated cyclic ethers
Assignee: 3M Co
•
Filing: 1962-10-30
•
Granted: 1965-10-19
•
Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Duane E Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:56
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/48; C07C; C07C45/00; C07C45/56; C07C45/57; C07C45/58; C07C45/59; C07C45/60; C07C51/00; C07C51/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS WHICH COMPRISES DECYCLIZING A PERFLUOROCYCLIC MONOETHER HAVING THE FORMULA
Claim 2
Dependent Claim
11 words
A PROCESS WHICH COMPRISES DECYCLIZING A PERFLUOROCYCLIC MONOETHER HAVING THE FORMULA
References Cited (Backward Citations)
US2456768A
Cited
US2549892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |