Patent US2354877A successfully refreshed from Google Patents.
US3858554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Individual device for the protection of lobsters or similar crustaceans during their growth
Assignee: BEAUPOIL CLAUDE MARC ANDRE
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Filing: 1973-09-18
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Granted: 1975-01-07
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Expires: 1993-09-18
Abstract
Abstract In an individual protective device for lobsters or similar crustaceans during their growth, a body, heavier than water, pierced with an elongated open cavity having a substantially elliptic cross-section the size of which gradually increases from the bottom of said cavity up to its opening, so that the young lobster or similar crustacean placed at the bottom of said cavity will be maintained in a natural position by said cavity and, during its successive casts of its shell, approach the opening.
Inventors
- 👤 Claude Marc-Andre Beaupoil
- 👤 Jean-Francois Hery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:47
CPC Classifications
A; A01; A01K; A01K61/00; A01K61/70; A01K61/50; A01K61/59; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
An individual protective device for lobsters or similar crustaceans during their growth, comprising a hollow body which is heavier than water and has an open end, a closed end, and walls extending between the ends, the walls having internal surfaces which define a substantially conical cavity of a substantially elleptic cross section, the size of the cavity cross section gradually increasing from the closed end to the open end for permitting a crustacean placed in the cavity at the closed end of the body to be maintained in a natural position and to approach the open end of the body during successive casts of the shell of the crustaceans.
Claim 2
Dependent Claim
109 words
An individual protective device for lobsters or similar crustaceans during their growth, comprising a hollow body which is heavier than water and has an open end, a closed end, and walls extending between the ends, the walls having internal surfaces which define a substantially conical cavity of a substantially elleptic cross section, the size of the cavity cross section gradually increasing from the closed end to the open end for permitting a crustacean placed in the cavity at the closed end of the body to be maintained in a natural position and to approach the open end of the body during successive casts of the shell of the crustaceans.
Claim 3
Dependent Claim
32 words
A device according to claim 1, wherein said walls of said body are pierced with opposed, staggered sets of holes which are finer at said bottom end than at said open end.
Claim 4
Dependent Claim
27 words
A device according to claim 2, wherein the body is provided with a flat bottom and its center of gravity is located substantially near said flat bottom.
Claim 5
Dependent Claim
20 words
A device according to claim 3, wherein said walls of said body are coated with a film of rich lime.
Claim 6
Dependent Claim
21 words
A device according to claim 1, wherein said internal surfaces of said walls are coated with an uncalcined lobster shell powder.
Claim 7
Dependent Claim
26 words
A device according to claim 1, wherein the body is provided with a flat bottom and its center of gravity is located substantially near said bottom.
Claim 8
Dependent Claim
20 words
A device according to claim 1, wherein the walls of the cavity are coated with a film of rich lime.
Claim 9
Dependent Claim
19 words
A device according to claim 1, wherein the internal surface of the cavity is coated with lobster shell powder.
References Cited (Backward Citations)
US3601095A
Cited
US3685034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |