US2748075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquarium device
Assignee: Individual
•
Filing: 1955-11-29
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Granted: 1956-05-29
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Expires: 1975-11-29
Abstract
No abstract record available.
Inventors
- 👤 Norman G Hovlid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:12
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
WATER PURIFYING APPARATUS UNSABLE WITHIN A CONTAINER WITH A CONVERSION BED OF FINE, LOOSE, WATER-INSOLUBLE PARTICLES FOR CONVERTING WASTE MATERIAL INTO NONTOXIC COMPOUNDS, COMPRISING: A SUBSTANTIALLY UNIPLANAR SUPPORT FOR SAID CONVERSION BED SPACED VERTICALLY ABOVE THE BOTTOM OF SAID CONTAINER SO AS TO DEFINE A CLEANWATER COLLECTION CHAMBER BETWEEN THE UNDERSIDE OF SAID SUPPORT AND SAID BOTTOM, SAID SUPPORT BEING FORMED OVER SUBSTANTIALLY ITS ENTIRE AREA WITH A PLURALITY OF OPENINGS WHICH PERMIT THE FREE DOWNWARD MOVEMENT OF WATER INTO SAID CLEAN-WATER COLLECTION CHAMBER, SAID OPENINGS EACH BEING SMALLER IN DIMENSION THAN SAID PARTICLES WHEREBY SAID PARTICLES WILL BE RESTRAINED FROM FALLING INTO SAID CLEAN-WATER CHAMBER AND SAID OPENINGS COLLECTIVELY CONSTITUTING A MINIMUM OF TEN PER CENT OF THE TOTAL AREA OF SAID SUPPORT.
Claim 2
Dependent Claim
124 words
WATER PURIFYING APPARATUS UNSABLE WITHIN A CONTAINER WITH A CONVERSION BED OF FINE, LOOSE, WATER-INSOLUBLE PARTICLES FOR CONVERTING WASTE MATERIAL INTO NONTOXIC COMPOUNDS, COMPRISING: A SUBSTANTIALLY UNIPLANAR SUPPORT FOR SAID CONVERSION BED SPACED VERTICALLY ABOVE THE BOTTOM OF SAID CONTAINER SO AS TO DEFINE A CLEANWATER COLLECTION CHAMBER BETWEEN THE UNDERSIDE OF SAID SUPPORT AND SAID BOTTOM, SAID SUPPORT BEING FORMED OVER SUBSTANTIALLY ITS ENTIRE AREA WITH A PLURALITY OF OPENINGS WHICH PERMIT THE FREE DOWNWARD MOVEMENT OF WATER INTO SAID CLEAN-WATER COLLECTION CHAMBER, SAID OPENINGS EACH BEING SMALLER IN DIMENSION THAN SAID PARTICLES WHEREBY SAID PARTICLES WILL BE RESTRAINED FROM FALLING INTO SAID CLEAN-WATER CHAMBER AND SAID OPENINGS COLLECTIVELY CONSTITUTING A MINIMUM OF TEN PER CENT OF THE TOTAL AREA OF SAID SUPPORT.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |