US4348983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for inducing set in planktonic bivalves
Assignee: COAST SEAFOODS Co
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Filing: 1981-09-08
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Granted: 1982-09-14
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Expires: 2001-09-08
Abstract
Abstract A method for inducing the setting of planktonic bivalves onto a substrate is disclosed. Planktonic bivalves, which have reached the competent pediveliger stage, are exposed to certain 1-substituted-3,4-dihydroxylbenzenes at a sufficient concentration to induce setting. The preferred concentration is at least about 10 -8 M with no upper limit and the preferred compound is 3,4-dihydroxyphenylalanine.
Inventors
- 👤 Kenneth L. Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:22
CPC Classifications
A; A01; A01K; A01K61/00; A01K61/50; A01K61/54; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
30 words
A method for inducing planktonic bivalves to set on a substrate in seawater, said method comprising adding a sufficient amount of a 1-substituted-3,4-dihydroxybenzene to said seawater to induce such setting.
Claim 2
Independent Claim
30 words
A method for inducing planktonic bivalves to set on a substrate in seawater, said method comprising adding a sufficient amount of a 1-substituted-3,4-dihydroxybenzene to said seawater to induce such setting.
Claim 3
Independent Claim
92 words
A method for raising planktonic bivalve larvae on a substrate in seawater to a suitable size, said method comprising: collecting the planktonic larvae when they have become competent pediveligers; placing the larvae in seawater having a sufficient concentration of a 1-substituted-3,4-dihydroxybenzene to induce the larvae to set on the substrate; maintaining the temperature in the range from 70° F. to 82° F.; allowing the larvae to remain in seawater and attached to the substrate until they have metamorphosed and achieved a suitable size; and collecting the bivalves from or with the substrate.
Claim 4
Independent Claim
92 words
A method for raising planktonic bivalve larvae on a substrate in seawater to a suitable size, said method comprising: collecting the planktonic larvae when they have become competent pediveligers; placing the larvae in seawater having a sufficient concentration of a 1-substituted-3,4-dihydroxybenzene to induce the larvae to set on the substrate; maintaining the temperature in the range from 70° F. to 82° F.; allowing the larvae to remain in seawater and attached to the substrate until they have metamorphosed and achieved a suitable size; and collecting the bivalves from or with the substrate.
Claim 5
Dependent Claim
28 words
A method as in claim 1 or 2, wherein said 1-substituted-3,4-dihydroxybenzene has the formula: ##STR2## wherein n is from 0 to 3 and a is 0 to 2.
Claim 6
Dependent Claim
13 words
A method as in claim 1 or 2, wherein said 1-substituted-3,4-dihydroxybenzene is 3,4-dihydroxyphenylalanine.
Claim 7
Dependent Claim
23 words
A method as in claim 1 or 2, wherein the 1-substituted-3,4-dihydroxybenzene is added to a final concentration of at least 10 -8 M.
References Cited (Backward Citations)
US3103202A
Cited
US3486486A
Cited
US3552357A
Cited
US3735737A
Cited
US3701338A
Cited
US4198926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-13 | 1986-03-15 | 1986-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-13 | 1990-03-15 | 1990-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-13 | 1994-03-15 | 1994-09-14 | $7700.00 | Window Closed / Lapsed |