US3547923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piperazyl ethyl 7h-benzocycloheptenes
Assignee: Bristol Myers Co
•
Filing: 1968-03-25
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Granted: 1970-12-15
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Expires: 1988-03-25
Abstract
No abstract record available.
Inventors
- 👤 Robert Ted Standridge
- 👤 Barbara Ann Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:40
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07C; C07C57/00; C07C57/52; C07C57/58; C07C57/60; C07C59/00; C07C59/40; C07C59/76; C07C59/88; C07D295/04; C07D295/08; C07D295/096
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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |