US3287375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nu, nu-dimethyl-nu-(2, 3-epoxypropyl)-omicron-substituted benzylammonium salts
Assignee: Bristol Myers Co
•
Filing: 1964-07-06
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Granted: 1966-11-22
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Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Mcgregor Donald Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:14
CPC Classifications
C; C07; C07D; C07D303/00; C07D303/02; C07D303/36; C07D331/00; C07D331/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A QUATERNARY AMMONIUM SALT HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A QUATERNARY AMMONIUM SALT HAVING THE FORMULA
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |