US3431304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2 - aminoalkylamino-benzophenones-oximes and imines and the salts thereof
Assignee: F Hoffmann La Roche AG
•
Filing: 1965-09-22
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Granted: 1969-03-04
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Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Rodney Ian Fryer
- 👤 Earl Reeder
- 👤 Leo Henryk Sternbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:46
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/44; C07D213/46; C07D213/50; C07D213/53; C07D243/00; C07D243/06; C07D243/10; C07D243/14; C07D243/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3131178A
Cited
US3141890A
Cited
US3182054A
Cited
US3222359A
Cited
US3136815A
Cited
US3239564A
Cited
US3203990A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |