US3454646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyether amine oxide surfaceactive agents
Assignee: Wyandotte Chemicals Corp
•
Filing: 1966-01-04
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Granted: 1969-07-08
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Expires: 1986-01-04
Abstract
No abstract record available.
Inventors
- 👤 John T Patton Jr
- 👤 Louis C Pizzini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
C; C07; C07C; C07C291/00; C07C291/02; C07C291/04; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08G65/33303; C08G65/33306; C08G65/338; C11; C11D; C11D1/00; C11D1/66; C11D1/75; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3206512A
Cited
FR1418653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |