US2669577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-acyloxyalkyl substituted derivatives of aminoalkoxydiarylmethanes and salts thereof
Assignee: GD Searle LLC
•
Filing: 1950-09-16
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Granted: 1954-02-16
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Expires: 1970-09-16
Abstract
No abstract record available.
Inventors
- 👤 John W Cusic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:53
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/10; C07C51/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF ESTERS OF A DIARYLMETHYL N-SUBSTITUTED AMINOALKYL ETHER HAVING THE FORMULA
Claim 2
Dependent Claim
18 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF ESTERS OF A DIARYLMETHYL N-SUBSTITUTED AMINOALKYL ETHER HAVING THE FORMULA
References Cited (Backward Citations)
US2532292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |