US2854483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bronchodilator compounds
Assignee: Wyeth LLC
•
Filing: 1954-10-06
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Granted: 1958-09-30
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Expires: 1974-10-06
Abstract
No abstract record available.
Inventors
- 👤 Andre L Langis
- 👤 Gordon S Myers
- 👤 Gordon A Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:00
CPC Classifications
C; C07; C07C; C07C65/00; C07C65/01; C07C65/105; C07C65/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP WHICH CONSISTS OF 3-BENZYLAMINO-2-(O-METHOXYPHENYL)-2-BUTANOL AND ITS HYDROCHLORIDE SALT.
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP WHICH CONSISTS OF 3-BENZYLAMINO-2-(O-METHOXYPHENYL)-2-BUTANOL AND ITS HYDROCHLORIDE SALT.
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) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |