Patent US3390665A successfully refreshed from Google Patents.
US3390665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquarium waterfall
Assignee: Individual
•
Filing: 1966-08-08
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Granted: 1968-07-02
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Elsworth H Wininger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:02
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/003; A01K63/006
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
WATERFALL APPARATUS FOR AN AQUARIUM CONTAINING SAND AND WATER AND COMPRISING: AN UPWARDLY OPENING CUP HAVING AN OUTLET SPOUT NEAR THE BOTTOM THEREOF; A FIRST ELONGATED TUBE ATTACHED TO THE BOTTOM OF SAID CUP AND HAVING AN OPEN UPPER END OPENING INTO SAID CUP, SAID TUBE EXTENDING STRAIGHT DOWNWARD FROM SAID CUP AND THEN CURVING OUTWARD TO A PORTION EXTENDING SUBSTANTIALLY HORIZONTALLY AND THEREUPON TERMAINATING AT AN OPEN LOWER END OF SAID FIRST TUBE;
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |