US3386977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of perfuloroalkyl alpha-trifluoromethacrylates
Assignee: Novartis Corp
•
Filing: 1965-08-13
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Granted: 1968-06-04
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Expires: 1985-08-13
Abstract
No abstract record available.
Inventors
- 👤 Eduard K Kleiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:47
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
COPOLYMERS OF COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
6 words
COPOLYMERS OF COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |