Patent US3190256A successfully refreshed from Google Patents.
US3190256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater vehicle
Assignee: Individual
•
Filing: 1964-06-18
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Granted: 1965-06-22
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Expires: 1984-06-18
Abstract
No abstract record available.
Inventors
- 👤 Emerson D Buie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:21
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
AN UNDERWATER VEHICLE, COMPRISING A BUOYANCY CHAMBER HAVING AN OPENING IN THE BOTTOM THEREOF ADAPTED TO RECEIVE AIR EXHAUSTED FROM A DIVING APPARATUS, AIR CONDUIT MEANS MOUNTED WITHIN SAID BUOYANCY CHAMBER AND HAVING AN OPENING THEREIN WITHIN THE CHAMBER, SAID AIR CONDUIT MEANS BEING MOVABLE UP AND DOWN IN SAID BUOYANCY CHAMBER, ONE END OPENING OUT THROUGH THE TOP OF SAID BUOYANCY CHAMBER, AND MEANS ON SAID BUOYANCY CHAMBER FOR HOLDING A PASSENGER BENEATH THE OPEN BOTTOM OF THE BUOYANCY CHAMBER.
Claim 2
Dependent Claim
81 words
AN UNDERWATER VEHICLE, COMPRISING A BUOYANCY CHAMBER HAVING AN OPENING IN THE BOTTOM THEREOF ADAPTED TO RECEIVE AIR EXHAUSTED FROM A DIVING APPARATUS, AIR CONDUIT MEANS MOUNTED WITHIN SAID BUOYANCY CHAMBER AND HAVING AN OPENING THEREIN WITHIN THE CHAMBER, SAID AIR CONDUIT MEANS BEING MOVABLE UP AND DOWN IN SAID BUOYANCY CHAMBER, ONE END OPENING OUT THROUGH THE TOP OF SAID BUOYANCY CHAMBER, AND MEANS ON SAID BUOYANCY CHAMBER FOR HOLDING A PASSENGER BENEATH THE OPEN BOTTOM OF THE BUOYANCY CHAMBER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |