US2610196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of acylated hydroxycarboxylic acids
Assignee: Individual
•
Filing: 1950-03-27
•
Granted: 1952-09-09
•
Expires: 1970-03-27
Abstract
No abstract record available.
Inventors
- 👤 Charles H Fisher
- 👤 Martin L Fein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:22
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/66; C07C69/67; C07C69/675; C07C69/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
THE PROCESS OF PREPARING AN ESTER OF AN ACYLATED LACTYLLACTIC ACID CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Dependent Claim
16 words
THE PROCESS OF PREPARING AN ESTER OF AN ACYLATED LACTYLLACTIC ACID CORRESPONDING TO THE GENERAL FORMULA
References Cited (Backward Citations)
US1927295A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |