Patent US3719496A successfully refreshed from Google Patents.
US3719496A
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Articles of white food for feeding aquatic animals and method of manufacture
Assignee: Individual
•
Filing: 1970-09-17
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Granted: 1973-03-06
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Expires: 1990-09-17
Abstract
Abstract High protein content food for fishes and like aquatic animals is prepared by dehydrating selected worms, quickly freezing a mass of the dehydrated worms, and then freeze drying the mass.
Inventors
- 👤 D Chen
- 👤 T Shih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:34
CPC Classifications
A; A23; A23K; A23K50/00; A23K50/80; A23K10/00; A23K10/20; A23K40/00; A23K40/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
36 words
A method of processing food for aquatic animals comprising the steps of dehydrating living worms to remove free and loosely bound water, immediately freezing a mass of said dehydrated worms, and then freeze drying the mass.
Claim 2
Independent Claim
36 words
A method of processing food for aquatic animals comprising the steps of dehydrating living worms to remove free and loosely bound water, immediately freezing a mass of said dehydrated worms, and then freeze drying the mass.
Claim 3
Dependent Claim
31 words
The method defined in claim 1, wherein said worms are of high protein content, being selected from the group consisting of tubifex worms, earth worms, mosquito larvae, brine shrimp and daphnia.
Claim 4
Dependent Claim
30 words
The method defined in claim 1, wherein said worms are dehydrated using a gypsum plate over which they are spread in a layer about half as thick as the plate.
Claim 5
Dependent Claim
22 words
The method defined in claim 1, wherein the dehydrated worms are quick frozen at about -60*C for about 10 to 15 minutes.
Claim 6
Dependent Claim
24 words
The method defined in claim 4, wherein the dehydrated worms are spread over a relatively thin layer in a freezing tray during quick freezing.
References Cited (Backward Citations)
US3528816A
Cited
US3361566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |