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US2449006A
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Alkenoxy amino diphenylamines
Assignee: Wyeth Holdings LLC
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Filing: 1944-07-03
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Granted: 1948-09-07
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Expires: 1964-07-03
Abstract
No abstract record available.
Inventors
- 👤 Robert P Parker
- 👤 John J Denton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:45
CPC Classifications
C; C07; C07C; C07C217/00; C07C217/78; C07C217/80; C07C217/82; C07C217/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2278559A
Cited
US2342136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |