US3651785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquarium having built-in means to prevent cannibalism
Assignee: Individual
•
Filing: 1970-03-20
•
Granted: 1972-03-28
•
Expires: 1990-03-20
Abstract
Abstract A transparent aquarium tank has a permanently built-in divider wall forming compartments for mature fish and new-born fish. The breeding compartment containing the mature fish has a narrow passage at the bottom through which the new-born fish gravitate into the separate compartment where they are protected from cannibalism. The divider wall has removable panels to facilitate cleaning and decorating of the aquarium, and also allow opening up of the aquarium when not in use for breeding purposes.
Inventors
- 👤 Clayton E Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:50
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
227 words
A breeding aquarium for tropical fish and the like comprising a transparent tank, a transparent partition wall within the tank forming a permanent integral part of the tank and defining therein an internal breeding compartment for fish, said breeding compartment having a restricted exit opening for newborn fish allowing such fish to leave the breeding compartment and enter the remaining portion of the tank which constitutes a safety compartment to protect the newborn fish from cannibalism, said transparent tank being rectanGular and having an open top, said transparent partition wall extending for the full length of the tank between two opposing side walls thereof and being permanently joined to said side walls, said partition wall including opposed sloping downwardly converging wall sections having their lower ends terminating in spaced relation near the bottom of the tank to define said restricted exit between said lower ends in the form of a restricted slot, said slot extending for the entire length of the tank, one of said sloping wall sections having its top permanently joined with an adjacent tank side wall, each sloping wall section having a large rectangular opening spanning the major area thereof and having flange means adjacent said opening, and a readily removable plate section on each sloping wall section engageable within the opening of said section and resting on said flange means and being transparent.
Claim 2
Dependent Claim
227 words
A breeding aquarium for tropical fish and the like comprising a transparent tank, a transparent partition wall within the tank forming a permanent integral part of the tank and defining therein an internal breeding compartment for fish, said breeding compartment having a restricted exit opening for newborn fish allowing such fish to leave the breeding compartment and enter the remaining portion of the tank which constitutes a safety compartment to protect the newborn fish from cannibalism, said transparent tank being rectanGular and having an open top, said transparent partition wall extending for the full length of the tank between two opposing side walls thereof and being permanently joined to said side walls, said partition wall including opposed sloping downwardly converging wall sections having their lower ends terminating in spaced relation near the bottom of the tank to define said restricted exit between said lower ends in the form of a restricted slot, said slot extending for the entire length of the tank, one of said sloping wall sections having its top permanently joined with an adjacent tank side wall, each sloping wall section having a large rectangular opening spanning the major area thereof and having flange means adjacent said opening, and a readily removable plate section on each sloping wall section engageable within the opening of said section and resting on said flange means and being transparent.
Claim 3
Dependent Claim
204 words
A breeding aquarium for tropical fish and the like comprising a transparent tank, a transparent partition wall within the tank forming a permanent integral part of the tank and defining therein an internal breeding compartment for fish, said breeding compartment having a restricted exit opening for newborn fish allowing such fish to leave the breeding compartment and enter the remaining portion of the tank which constitutes a safety compartment to protect the newborn fish from cannibalism, said transparent partition wall extending for the full length of the tank between two opposing side walls thereof and being permanently joined to said side walls, said partition wall including opposed sloping downwardly converging wall sections having their lower ends terminating in spaced relation near the bottom of the tank to define said restricted exit between said lower ends in the form of a restricted slot, said slot extending for the entire length of the tank, one of said sloping wall sections having its top permanently joined with an adjacent tank side wall, each sloping wall section having a large opening spanning a major area portion thereof, and a readily liftable and removable plate section on each sloping wall section coextensive with the opening of such wall section.
Claim 4
Dependent Claim
204 words
A breeding aquarium for tropical fish and the like comprising a transparent tank, a transparent partition wall within the tank forming a permanent integral part of the tank and defining therein an internal breeding compartment for fish, said breeding compartment having a restricted exit opening for newborn fish allowing such fish to leave the breeding compartment and enter the remaining portion of the tank which constitutes a safety compartment to protect the newborn fish from cannibalism, said transparent partition wall extending for the full length of the tank between two opposing side walls thereof and being permanently joined to said side walls, said partition wall including opposed sloping downwardly converging wall sections having their lower ends terminating in spaced relation near the bottom of the tank to define said restricted exit between said lower ends in the form of a restricted slot, said slot extending for the entire length of the tank, one of said sloping wall sections having its top permanently joined with an adjacent tank side wall, each sloping wall section having a large opening spanning a major area portion thereof, and a readily liftable and removable plate section on each sloping wall section coextensive with the opening of such wall section.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |