US3906900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of handling shrimp eggs
Assignee: GRANADA BIOSCIENCES, INC. A CORP. OF TEXAS
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Filing: 1972-09-05
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Granted: 1975-09-23
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Expires: 1992-09-05
Abstract
Abstract A method of spawning, collecting, shipping and hatching shrimp eggs by controlling the selection of spawned eggs to obtain only the most desirable, placing the desired eggs into a container for shipment and controlling the temperature of the eggs during shipment within a predetermined range to control the hatching thereof such that the shrimp do not progress beyond the beginning of the protozoeal stage of growth during the shipment thereof.
Inventors
- 👤 Yosuke Hirono
- 👤 Donald E Sweat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:50
CPC Classifications
A; A01; A01K; A01K61/00; A01K61/50; A01K61/59; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
134 words
A method of spawning, and shipping shrimp eggs comprising the steps of: placing gravid female shrimp into spawning tanks; retaining the gravid female shrimp in the tank for a period of time sufficient for the eggs to be spawned; collecting the spawned eggs from the tanks; selecting an aliquot sample of the eggs to determine the viability thereof; placing the viable eggs into a sealed container at a concentration up to about 5,000 eggs per milliliter of sea water in the container; and controlling the temperature of the sea water during shipment within a predetermined range sufficient to prevent the eggs from hatching and progressing beyond the beginning of the protozoeal stage of growth during the shipment thereof and thereafter acclimating the shrimp in sea water under desired conditions for the subsequent growth thereof.
Claim 2
Independent Claim
134 words
A method of spawning, and shipping shrimp eggs comprising the steps of: placing gravid female shrimp into spawning tanks; retaining the gravid female shrimp in the tank for a period of time sufficient for the eggs to be spawned; collecting the spawned eggs from the tanks; selecting an aliquot sample of the eggs to determine the viability thereof; placing the viable eggs into a sealed container at a concentration up to about 5,000 eggs per milliliter of sea water in the container; and controlling the temperature of the sea water during shipment within a predetermined range sufficient to prevent the eggs from hatching and progressing beyond the beginning of the protozoeal stage of growth during the shipment thereof and thereafter acclimating the shrimp in sea water under desired conditions for the subsequent growth thereof.
Claim 3
Dependent Claim
27 words
The method according to claim 1 wherein the temperature of the sea water during the shipment of the eggs is within the range of 21* - 25*C.
Claim 4
Dependent Claim
46 words
The method according to claim 2 wherein the gravid female shrimp is held in sea water at a temperature of about 14* -22* C. prior to the spawning thereof, and the gravid female shrimp is placed into individual spawning tanks for the spawning of the eggs.
Claim 5
Dependent Claim
53 words
The method according to claim 1 wherein the concentration of eggs in the container is in the range of about 800 - 2,000 eggs per milliliter of sea water and the temperature of the sea water during the shipment of the eggs is controlled within the range of about 21* - 25* C.
Claim 6
Dependent Claim
26 words
The method according to claim 4 including the step of washing the eggs following the collection thereof and prior to the placement in the sealed container.
Claim 7
Independent Claim
146 words
A method of spawning, shipping and hatching shrimp comprising the steps of: placing gravid female shrimp into individual spawning tanks; allowing the gravid female shrimp to remaining in the tank for a period of time sufficient for the eggs to be spawned; collecting the spawned eggs; selecting an aliquot sample of the spawned eggs to determine the viability of the eggs; placing the viable eggs into a sealed container for shipment at a concentration up to about 5,000 eggs per milliliter of sea water in the container; controlling the temperature of the sea water during the shipment of the eggs within a predetermined range sufficient to prevent hatching of the eggs within about 12 - 15 hours from spawning as normally occurs and during the shipment thereof; acclimating the sea water containing the eggs to a desirable temperature for hatching the eggs; and hatching the shrimp.
Claim 8
Independent Claim
146 words
A method of spawning, shipping and hatching shrimp comprising the steps of: placing gravid female shrimp into individual spawning tanks; allowing the gravid female shrimp to remaining in the tank for a period of time sufficient for the eggs to be spawned; collecting the spawned eggs; selecting an aliquot sample of the spawned eggs to determine the viability of the eggs; placing the viable eggs into a sealed container for shipment at a concentration up to about 5,000 eggs per milliliter of sea water in the container; controlling the temperature of the sea water during the shipment of the eggs within a predetermined range sufficient to prevent hatching of the eggs within about 12 - 15 hours from spawning as normally occurs and during the shipment thereof; acclimating the sea water containing the eggs to a desirable temperature for hatching the eggs; and hatching the shrimp.
Claim 9
Dependent Claim
29 words
The method according to claim 6 including the step of washing the eggs following the collection thereof and prior to the placement of the eggs in the sealed container.
Claim 10
Dependent Claim
29 words
The method according to claim 6 wherein the concentration of eggs in the container is in the range of about 800 - 2,000 eggs per milliliter of sea water.
Claim 11
Dependent Claim
29 words
The method according to claim 8 wherein the temperature of the sea water during the shipment of the eggs is maintained within the range of 21* - 25* C.
Claim 12
Dependent Claim
28 words
The method according to claim 8 wherein the salinity of the sea water in the container is maintained in the range of 23 - 36 parts per thousand.
Claim 13
Dependent Claim
29 words
The sea method according to claim 7 wherein the temperature of the water during the shipment of the eggs is maintained within the range of 21* - 25* C.
Claim 14
Dependent Claim
35 words
The method according to claim 11 wherein the gravid female shrimp is held in sea water at a temperature of about 14* - 22* C. in the individual spawning tanks prior to the spawning thereof.
Claim 15
Independent Claim
108 words
A method of handling shrimp eggs wherein spawned eggs are collected from gravid female shrimp and the viable eggs are separated therefrom for hatching comprising the steps of: placing the viable eggs in a container at a concentration up to about 5, 000 eggs per milliliter of sea water in the container, controlling the temperature of the sea water within the range of 21* - 25* C. and maintaining the shrimp eggs therein for a predetermined period of time and thereafter removing the shrimp eggs from the container and acclimating the shrimp eggs in sea water at a temperature desirable for hatching the shrimp from the shrimp eggs.
Claim 16
Independent Claim
108 words
A method of handling shrimp eggs wherein spawned eggs are collected from gravid female shrimp and the viable eggs are separated therefrom for hatching comprising the steps of: placing the viable eggs in a container at a concentration up to about 5, 000 eggs per milliliter of sea water in the container, controlling the temperature of the sea water within the range of 21* - 25* C. and maintaining the shrimp eggs therein for a predetermined period of time and thereafter removing the shrimp eggs from the container and acclimating the shrimp eggs in sea water at a temperature desirable for hatching the shrimp from the shrimp eggs.
Claim 17
Dependent Claim
43 words
The method according to claim 13 wherein the acclimating of the shrimp eggs is achieved by placing the shrimp eggs in sea water at a temperature of approximately 26 - 30* C. and permitting the hatching of the shrimp from the shrimp eggs.
Claim 18
Independent Claim
93 words
A method of handling shrimp eggs comprising the steps of: placing the shrimp eggs in a sealed container at a concentration up to about 5,000 eggs per milliliter of sea water in the container, controlling the temperature of the sea water within the container for a predetermined period of time to prevent the eggs from hatching and progressing beyond the beginning of the protozoea stage of growth of the shrimp and thereafter removing the shrimp from the container and acclimating the shrimp in sea water under desired conditions for the subsequent growth thereof.
Claim 19
Independent Claim
93 words
A method of handling shrimp eggs comprising the steps of: placing the shrimp eggs in a sealed container at a concentration up to about 5,000 eggs per milliliter of sea water in the container, controlling the temperature of the sea water within the container for a predetermined period of time to prevent the eggs from hatching and progressing beyond the beginning of the protozoea stage of growth of the shrimp and thereafter removing the shrimp from the container and acclimating the shrimp in sea water under desired conditions for the subsequent growth thereof.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |