US2594350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beta-diethylaminoethyl 3-phenyl-2-hydroxybenzoate mandelate
Assignee: Individual
•
Filing: 1950-12-21
•
Granted: 1952-04-29
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Expires: 1970-12-21
Abstract
No abstract record available.
Inventors
- 👤 Sahyun Melville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:19
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C231/00; C07C231/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
3 words
BETA-DIETHYLAMINOETHYL 3-PHENYL-2-HYDROXYBENZOATE MANDELATE.
Claim 2
Dependent Claim
3 words
BETA-DIETHYLAMINOETHYL 3-PHENYL-2-HYDROXYBENZOATE MANDELATE.
Claim 3
Dependent Claim
23 words
THE PROCESS WHICH INCLUDES: MIXING SUBSTANTIALLY EQUIMOLECULAR PROPORTIONS OF MANDELIC ACID WITH BETA-DIETHYLAMINOETHYL 3-PHYENYL-2HYDROXYBENZOATE; AND, RECOVERING BETA-DIETHYLAMINOETHYL 3-HYDROXYBENZOATE MANDELATE FROM THE REACTION PRODUCT.
Claim 4
Dependent Claim
23 words
THE PROCESS WHICH INCLUDES: MIXING SUBSTANTIALLY EQUIMOLECULAR PROPORTIONS OF MANDELIC ACID WITH BETA-DIETHYLAMINOETHYL 3-PHYENYL-2HYDROXYBENZOATE; AND, RECOVERING BETA-DIETHYLAMINOETHYL 3-HYDROXYBENZOATE MANDELATE FROM THE REACTION PRODUCT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |