US3547995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfluoroalkyl ether amidoamine oxides
Assignee: EIDP Inc
•
Filing: 1968-02-16
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Granted: 1970-12-15
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Expires: 1988-02-16
Abstract
No abstract record available.
Inventors
- 👤 Philip Lee Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:49
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/40; C07C; C07C291/00; C07C291/02; C07C291/04; C07D213/60; C07D213/72; C07D213/75; C07D215/00; C07D215/02; C07D215/04; C07D215/10; C07D215/12; C07D215/16; C07D215/18; C07D215/38; C07D215/40; C07D215/58; C07D215/60; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08G65/33303; C08G65/33306; C10; C10M; C10M3/00; C10M5/00; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/145; C23F11/147; C23G; C23G1/00; C23G1/02; C23G1/04; C23G1/06; C23G1/061; C23G1/063; C10M2211/00; C10M2211/02; C10M2211/022; C10M2211/06; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2764603A
Cited
US3250808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |