US3139244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable vtol aircraft
Assignee: Individual
•
Filing: 1961-08-15
•
Granted: 1964-06-30
•
Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Cooper B Bright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:39
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
AN AIRCRAFT COMPRISING, AN AIR FRAME, SAID AIR FRAME INCLUDING A PLURALITY OF STRUCTURAL ELEMENTS, AT LEAST ONE OF SAID STRUCTURAL ELEMENTS BEING A FLEXIBLE, INFLATABLE, FOLDABLE FLUID STORAGE COMPARTMENT DEFINING PART OF THE AIRCRAFT''S FIXED, INHERENT SUPPORTING STRUCTURE, SAID COMPARTMENT BEING SO CONSTRUCTED AS TO HAVE A MAXIMUM VOLUMETRIC CAPACITY THAT IS SUBSTANTIALLY INDEPENDENT OF THE GAS PRESSURE THEREIN; MEANS FOR INJECTING FLUID INTO SAID COMPARTMENT AT GREATER THAN ATMOSPHERIC PRESSURE, FLUID DRIVEN PROPULSION MEANS, AND FLUID CONDUCTING MEANS FOR CONVEYING PRESSURIZED FLUID FROM SAID COMPARTMENT TO SAID PROPULSION MEANS FOR USE AS A POWER SOURCE.
Claim 2
Dependent Claim
97 words
AN AIRCRAFT COMPRISING, AN AIR FRAME, SAID AIR FRAME INCLUDING A PLURALITY OF STRUCTURAL ELEMENTS, AT LEAST ONE OF SAID STRUCTURAL ELEMENTS BEING A FLEXIBLE, INFLATABLE, FOLDABLE FLUID STORAGE COMPARTMENT DEFINING PART OF THE AIRCRAFT''S FIXED, INHERENT SUPPORTING STRUCTURE, SAID COMPARTMENT BEING SO CONSTRUCTED AS TO HAVE A MAXIMUM VOLUMETRIC CAPACITY THAT IS SUBSTANTIALLY INDEPENDENT OF THE GAS PRESSURE THEREIN; MEANS FOR INJECTING FLUID INTO SAID COMPARTMENT AT GREATER THAN ATMOSPHERIC PRESSURE, FLUID DRIVEN PROPULSION MEANS, AND FLUID CONDUCTING MEANS FOR CONVEYING PRESSURIZED FLUID FROM SAID COMPARTMENT TO SAID PROPULSION MEANS FOR USE AS A POWER SOURCE.
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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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |