US3204596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroglider
Assignee: Individual
•
Filing: 1960-10-12
•
Granted: 1965-09-07
•
Expires: 1980-10-12
Abstract
No abstract record available.
Inventors
- 👤 Ewan S Fallon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:06
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
IN A SUBMERSIBLE MARINE CRAFT, MEANS FOR ACCOMPLISHING HYDRODYNAMIC PROPULSIVE MOVEMENT THEREOF, COMPRISING WING-LIKE HYDROFOIL MEANS SPANNING SEVERAL BEAM DIAMETERS OF THE CRAFT, A PRESSURIZBLE BUOYANCY CONTROLLING CHAMBER CONTAINING WATER AND ALSO CONTAINING GAS WITHIN VARIABLE VOLUME ENVELOPE MEANS, SAID BUOYANCY CONTROLLING CHAMBER OPERATIVELY MAINTAINING SAID CRAFT AT A SLIGHTLY POSITIVE NET BUOYANCY WHEN AT MINIMAL PRESSURE, PUMP MEANS FOR PUMPING AMBIENT WATER INTO SAID PRESSURIZABLE CHAMBER AND COMPRESSING THE GAS WITHIN SAID VARIABLE VOLUME ENVELOPE MEANS TO ESTABLISH THE NET BUOYANCY FACTOR OF SDAID CRAFT AS SLIGHTLY NEGATIVE, AND VALVULAR WATER RELEASE MEANS FOR PERMITTING ESCAPE OF PRESSURIZED WATER FROM SAID CHAMBER AND THE EXPANSION OF THE GAS WITHIN SAID VARIABLE VOLUME ENVELOPE MEANS TO ESTABLISH THE NET BUOYANCY OF SAID CRAFT AS SLIGHTLY POSITION.
Claim 2
Dependent Claim
126 words
IN A SUBMERSIBLE MARINE CRAFT, MEANS FOR ACCOMPLISHING HYDRODYNAMIC PROPULSIVE MOVEMENT THEREOF, COMPRISING WING-LIKE HYDROFOIL MEANS SPANNING SEVERAL BEAM DIAMETERS OF THE CRAFT, A PRESSURIZBLE BUOYANCY CONTROLLING CHAMBER CONTAINING WATER AND ALSO CONTAINING GAS WITHIN VARIABLE VOLUME ENVELOPE MEANS, SAID BUOYANCY CONTROLLING CHAMBER OPERATIVELY MAINTAINING SAID CRAFT AT A SLIGHTLY POSITIVE NET BUOYANCY WHEN AT MINIMAL PRESSURE, PUMP MEANS FOR PUMPING AMBIENT WATER INTO SAID PRESSURIZABLE CHAMBER AND COMPRESSING THE GAS WITHIN SAID VARIABLE VOLUME ENVELOPE MEANS TO ESTABLISH THE NET BUOYANCY FACTOR OF SDAID CRAFT AS SLIGHTLY NEGATIVE, AND VALVULAR WATER RELEASE MEANS FOR PERMITTING ESCAPE OF PRESSURIZED WATER FROM SAID CHAMBER AND THE EXPANSION OF THE GAS WITHIN SAID VARIABLE VOLUME ENVELOPE MEANS TO ESTABLISH THE NET BUOYANCY OF SAID CRAFT AS SLIGHTLY POSITION.
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |