US3277068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluorovinylphenylethers and their polymers
Assignee: Individual
•
Filing: 1962-07-31
•
Granted: 1966-10-04
•
Expires: 1982-07-31
Abstract
No abstract record available.
Inventors
- 👤 Leo A Wall
- 👤 Walter J Pummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/12; C08F16/14; C08F16/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
THE PROCESS OF POLYMERIZING TRIFLUOROVINYLPHENYL ETHER OLEFIN COMPRISING THE STEPS OF SUBJECTING SAID OLEFIN TO ACTINIC RADIATION OF ABOUT 0.01 TO 1 MEGARAD PER HOUR UNDER SUITABLE CONDITIONS OF TEMPERATURE BETWEEN ABOUT 20*C. AND 200*C. AND PRESSURE BETWEEN ABOUT 5 AND 5,000 ATMOSPHERES AND SEPARATING THE RESULTANT POLYMER.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |