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US3321082A
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US
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Aquarium filter
Assignee: Aquariums Inc
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Filing: 1964-06-26
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Granted: 1967-05-23
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Allan H Willinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:11
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; A; A01; A01K; A01K63/00; A01K63/04; A01K63/045; B01D24/00; B01D24/02; B01D24/20; B01D24/22; B01D24/46; B01D24/4631; B01D2201/00; B01D2201/08; B01D2201/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AN AQUARIUM FILTER ASSEMBLY COMPRISING A FILTER RECEPTACLE ADAPTED TO BE SUSPENDED ON THE EXTERIOR OF AN AQUARIUM TANK, SAID FILTER RECEPTACLE HAVING A BOTTOM WALL AND A PLATFORM SPACED ABOVE SAID BOTTOM WALL TO DEFINE IN SAID RECEPTACLE A FILTER CHAMBER ABOVE SAID PLATFORM AND A CLEAN WATER CHAMBER BELOW SAID PLATFORM, SAID CHAMBERS BEING IN FLUID FLOW RELATION THROUGH SAID PLATFORM, SAID BOTTOM WALL HAVING AN APERTURE DEFINED THEREIN AND BEING PROVIDED WITH A CLEAN WATER RESERVOIR IN REGISTRY WITH SAID APERTURE FOR THE FLOW OF CLEAN WATER FROM SAID CLEAN WATER CHAMBER INTO SAID RESERVOIR, SAID PLATFORM HAVING AN APERTURE DEFINED THEREIN IN REGISTRY WITH SAID WALL APERTURE, CONDUIT MEANS EXTENDING FROM
Claim 2
Dependent Claim
115 words
AN AQUARIUM FILTER ASSEMBLY COMPRISING A FILTER RECEPTACLE ADAPTED TO BE SUSPENDED ON THE EXTERIOR OF AN AQUARIUM TANK, SAID FILTER RECEPTACLE HAVING A BOTTOM WALL AND A PLATFORM SPACED ABOVE SAID BOTTOM WALL TO DEFINE IN SAID RECEPTACLE A FILTER CHAMBER ABOVE SAID PLATFORM AND A CLEAN WATER CHAMBER BELOW SAID PLATFORM, SAID CHAMBERS BEING IN FLUID FLOW RELATION THROUGH SAID PLATFORM, SAID BOTTOM WALL HAVING AN APERTURE DEFINED THEREIN AND BEING PROVIDED WITH A CLEAN WATER RESERVOIR IN REGISTRY WITH SAID APERTURE FOR THE FLOW OF CLEAN WATER FROM SAID CLEAN WATER CHAMBER INTO SAID RESERVOIR, SAID PLATFORM HAVING AN APERTURE DEFINED THEREIN IN REGISTRY WITH SAID WALL APERTURE, CONDUIT MEANS EXTENDING FROM
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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |