Patent US3398778A successfully refreshed from Google Patents.
Patent US2922824A successfully refreshed from Google Patents.
US2922824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of perfluorochloroolefin polymers
Assignee: 3M Co
•
Filing: 1955-09-23
•
Granted: 1960-01-26
•
Expires: 1975-09-23
Abstract
No abstract record available.
Inventors
- 👤 Francis J Honn
- 👤 Fred W West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:52
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/30; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A PROCESS FOR STABILIZING LIQUID PERFLUORCHLOROOLEFIN POLYMERS CONTAINING ONLY CHLORINE AND FLUORINE ATTACHED TO THE CARBON CHAIN WHICH COMPRISE MAINTAINING THE POLYMER IN CONTACT WITH A STABILIZER COMPRISING CADMIUM.
Claim 2
Dependent Claim
29 words
A PROCESS FOR STABILIZING LIQUID PERFLUORCHLOROOLEFIN POLYMERS CONTAINING ONLY CHLORINE AND FLUORINE ATTACHED TO THE CARBON CHAIN WHICH COMPRISE MAINTAINING THE POLYMER IN CONTACT WITH A STABILIZER COMPRISING CADMIUM.
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) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |