US2799684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline compounds of tryptophane and methods of manufacturing them
Assignee: FOOD CHEMICAL AND RES LAB Inc
•
Filing: 1954-06-18
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Granted: 1957-07-16
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Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Morris Daniel Luzon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:48
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/10; C07D209/18; C07D209/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A COMPOSITION OF MATTER COMPRISING IN CRYSTALLINE FORM TRYPTOHANE CHEMICALLY COMBINED WITH AN ORGANIC ACID ON A SUBSTANTIALLY EQUIMOLAL BASIS, SAID ORGANIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF FORMIC, ACETIC, PROPIONIC, BUTYRIC, CAPROIC AND BENZOIC.
Claim 2
Dependent Claim
37 words
A COMPOSITION OF MATTER COMPRISING IN CRYSTALLINE FORM TRYPTOHANE CHEMICALLY COMBINED WITH AN ORGANIC ACID ON A SUBSTANTIALLY EQUIMOLAL BASIS, SAID ORGANIC ACID BEING SELECTED FROM THE GROUP CONSISTING OF FORMIC, ACETIC, PROPIONIC, BUTYRIC, CAPROIC AND BENZOIC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |