US3475434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N - perfluoroalkanoylamino- and n - perfluoroalkanoylaminoalkyl acrylamides
Assignee: Novartis Corp
•
Filing: 1966-08-22
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Granted: 1969-10-28
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Expires: 1986-08-22
Abstract
No abstract record available.
Inventors
- 👤 Martin Knell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:59
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07C; C07C243/00; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/295; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3134810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |