US3546186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of substituted perfluorovinyl ethers
Assignee: EIDP Inc
•
Filing: 1968-09-30
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Granted: 1970-12-08
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Expires: 1988-09-30
Abstract
No abstract record available.
Inventors
- 👤 Edward Karcher Gladding
- 👤 Raymond Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:31
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/18; C08F214/28; C08F214/282; C07; C07C; C07C255/00; C07C59/00; C07C59/235; C07C59/305; C07C59/315; C07C59/40; C07C59/58; C07C59/60; C08F16/00; C08F16/12; C08F16/14; C08F16/24; C08F214/22; C08F214/222; C08F214/26; C08F214/262
Claims Analysis
Total Claims: 0
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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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |