Patent JPS53112331A successfully refreshed from Google Patents.
US2523744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of aspartic acid
Assignee: General Mills Inc
•
Filing: 1946-12-06
•
Granted: 1950-09-26
•
Expires: 1966-12-06
Abstract
No abstract record available.
Inventors
- 👤 Donald T Warner
- 👤 Owen A Moe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:02
CPC Classifications
C; C07; C07C; C07C229/00; C07C229/02; C07C229/04; C07C229/24; C07C231/00; C07C231/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
BETA - ACETAMIDO - BETA, BETA - DICARBETHOXY PROPIONIC ACID.
Claim 2
Dependent Claim
10 words
BETA - ACETAMIDO - BETA, BETA - DICARBETHOXY PROPIONIC ACID.
References Cited (Backward Citations)
US2316543A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |