US3247826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filtering means for an aquarium
Assignee: Individual
•
Filing: 1964-07-10
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Granted: 1966-04-26
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Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Girard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:00
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/045
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
102 words
IN AN AQUARIUM HAVING A GRAVEL BED ON ITS BOTTOM, A PLURALITY OF BRANCH CONDUITS BENEATH THE GRAVEL BED EXTENDING GENERALLY TO ALL AREAS OF THE GRAVEL BED WITHIN THE AQUARIUM AND LEADING OT A COMMON CONDUIT, MEANS EXTENDING VERTICALLY FROM SAID BRANCH CONDUITS TO A POINT ABOVE THE GRAVEL BED FOR PICK-UP OF WATER FROM A VARIETY OF LOCATIONS IN SAID AQUARIUM, A FILTER MEDIUM WITHIN A COMPARTMENT, MEANS PROVIDING A CHAMBER REMOVABLY COMMUNICATING SAID FILTER MEDIUM AND SAID BRANCH CONDUITS, WHEREBY THE FILTER MEDIUM AND THE COMPARTMENT MAY BE REMOVED WITHOUT DISTURBING THE GRAVEL BED AND THE CONDUITS BENEATH IT.
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |