US2915540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complexes of gamma glutamyl mono-esters
Assignee: General Mills Inc
•
Filing: 1955-06-29
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Granted: 1959-12-01
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Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Robert W H Chang
- 👤 Norval G Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:16
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/10; C07C229/00; C07C229/02; C07C229/04; C07C229/24; C07C229/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A MULTIVALENT METAL COMPLEX OF A GAMMA ESTER OF GLUTAMIC ACID SAID ESTER BEING SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AND BENZYL ESTERS AND SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF COPPER, NICKEL, MAGNESIUM, COBALT, CALCIUM, IRON, CHROMIUM, ZINC, ALUMINUM AND MERCURY.
Claim 2
Dependent Claim
46 words
A MULTIVALENT METAL COMPLEX OF A GAMMA ESTER OF GLUTAMIC ACID SAID ESTER BEING SELECTED FROM THE GROUP CONSISTING OF LOWER ALKYL AND BENZYL ESTERS AND SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF COPPER, NICKEL, MAGNESIUM, COBALT, CALCIUM, IRON, CHROMIUM, ZINC, ALUMINUM AND MERCURY.
References Cited (Backward Citations)
US2561323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |