Patent US5616746A successfully refreshed from Google Patents.
US3513166A
Expired / Lapsed
US
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3-(omega-aminoalkyl)-4-substituted-1,3-benzoxazine-2-ones
Assignee: AH Robins Co Inc
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Filing: 1967-05-22
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Granted: 1970-05-19
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Expires: 1987-05-22
Abstract
No abstract record available.
Inventors
- 👤 John A Richman Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:32
CPC Classifications
C; C07; C07D; C07D413/00; C07D413/02; C07D413/06; A; A61; A61K; A61K31/00; C07D211/00; C07D211/04; C07D211/68; C07D211/70; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/36; C07D213/38; C07D265/00; C07D265/04; C07D265/12; C07D265/14; C07D265/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |