US3240186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating aquarium structure
Assignee: Individual
•
Filing: 1963-12-30
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Granted: 1966-03-15
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Dobell Curzon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:21
CPC Classifications
E; E02; E02B; E02B17/00; A; A01; A01K; A01K61/00; A01K61/60; Y; Y02; Y02A; Y02A40/00; Y02A40/80; Y02A40/81
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A FLOATING STRUCTURE FOR UNDERWATER OBSERVATION COMPRISING INNER AND OUTER SPACED VERTICAL PERIMETRIC WALLS, TOP AND BOTTOM MEMBERS CONNECTING SAID WALLS TO FORM A WATER-TIGHT COMPARTMENT, PLURALITY OF FISH OBSERVATION WINDOWS DISPOSED IN SAID WALLS, A MESH NET MEMBER DISPOSED ACROSS THE BOTTOM OF SAID INNER WALL PROVIDING A CAPTIVE FISH SPACE, AND JACK MEANS ATTACHED TO SAID STRUCTURE FOR EMBEDDING INTO THE SEA BOTTOM TO RAISE AND LOWER SAID STRUCTURE TO PREDETERMINED LEVELS.
References Cited (Backward Citations)
US165639A
Cited
US385656A
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US1048194A
Cited
GB191322335A
Cited
US1444367A
Cited
US2203565A
Cited
US2334992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |