Patent US3301683A successfully refreshed from Google Patents.
US3301683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic fruit and vegetable food and method of coloring employing benzopyrylium compounds
Assignee: Individual
•
Filing: 1963-02-27
•
Granted: 1967-01-31
•
Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Jurd Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:58
CPC Classifications
C; C07; C07D; C07D311/00; C07D311/02; C07D311/04; C07D311/58; A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/47
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
A METHOD FOR COLORING A FOOD SELECTED FROM THE GROUP CONSISTING OF ACIDIC FRUIT PRODUCTS AND ACIDIC VEGETABLE PRODUCTS WHICH COMPRISES ADDING THERETO A COMPOUND OF THE STRUCTURE
Claim 2
Independent Claim
28 words
A METHOD FOR COLORING A FOOD SELECTED FROM THE GROUP CONSISTING OF ACIDIC FRUIT PRODUCTS AND ACIDIC VEGETABLE PRODUCTS WHICH COMPRISES ADDING THERETO A COMPOUND OF THE STRUCTURE
Claim 3
Dependent Claim
35 words
A COMPOSITION COMPRISING (1) A FOOD SELECTED FROM THE GROUP CONSISTING OF ACIDIC FRUIT PRODUCTS AND ACIDIC VEGETABLE PRODUCTS, AND AS A COLORING AGENT (2) A COMPOUND OF THE STRUCTURE AS SHOWN IN CLAIM 1.
References Cited (Backward Citations)
US2235790A
Cited
US2336890A
Cited
US2461484A
Cited
US2646355A
Cited
US2583686A
Cited
US2861891A
Cited
US2943943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |