US3476807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum alkoxide process for preparing tertiary amines
Assignee: Ethyl Corp
•
Filing: 1965-12-01
•
Granted: 1969-11-04
•
Expires: 1985-12-01
Abstract
No abstract record available.
Inventors
- 👤 James D Johnston
- 👤 Leslie L Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:06
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/64; C07C209/04; C07C209/14; C07C209/16; C07C209/60; C07C211/00; C07C211/01; C07C211/02; C07C211/03; C07C211/04; C07C211/08; C07C217/00; C07C217/02; C07C217/04; C07C217/06; C07C217/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3080424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |