US3174411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floorings for taking-off and landing
Assignee: Safran Aircraft Engines SAS
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Filing: 1961-04-18
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Granted: 1965-03-23
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 Oestrich Hermann
- 👤 Michard Louis
- 👤 Meunier Auguste Laurent
- 👤 Minos Jean-Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:00
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A TAKE-OFF AND LANDING STRUCTURE DESIGNED FOR VERTICAL TAKE-OFF AND LANDING JET AIRCRAFT, COMPRISING AN MULTIPLICITY OF METAL PLATES HAVING A FLAT UPPER SURFACE, SAID PLATES BEING JOINTED SIDE BY SIDE IN JUXTAPOSED COEXTENSIVE RELATION AND FORMING A HORIZONTAL FLOORING WHICH IS SMOOTH AND PLANAR THROUGHOUT AND SUBTANTIALLY FREE OF UPWARDLY PROJECTING PROTRUSIONS, CRUCIFORM GUTTER-SHAPED MEMBERS IN MUTUAL REGISTERING END-WISE ABUTMENT, FORMING A CROSSED-NETWORK LATTICE ADAPTED TO REST ON THE SOIL SAID MEMBERS EXTENDING UNDERNEATH THE FLAT UPPER SURFACES OF SAID PLATES AND ALONG THE JOINTED SIDES OF ADJACENT PLATES RIGHT TO THE PERIPHERY OF SAID FLOORING, SAID LATTICE OF CRUCIFORM GUTTER-SHAPED MEMBERS SUPPORTING SAID FLOORING AND BEING DETACHABLY CONNECTED THERETO BY REMOVABLE SECURING MEANS WHICH LOCK SAID PLATES IN POSITION, WHEREBY ANY GAS LEAKING DOWNWRDLY BETWEEN SAID JOINTED SIDES WILL BE LED OFF TO THE PERIPHERY OF SAID FLOORING.
Claim 2
Dependent Claim
140 words
A TAKE-OFF AND LANDING STRUCTURE DESIGNED FOR VERTICAL TAKE-OFF AND LANDING JET AIRCRAFT, COMPRISING AN MULTIPLICITY OF METAL PLATES HAVING A FLAT UPPER SURFACE, SAID PLATES BEING JOINTED SIDE BY SIDE IN JUXTAPOSED COEXTENSIVE RELATION AND FORMING A HORIZONTAL FLOORING WHICH IS SMOOTH AND PLANAR THROUGHOUT AND SUBTANTIALLY FREE OF UPWARDLY PROJECTING PROTRUSIONS, CRUCIFORM GUTTER-SHAPED MEMBERS IN MUTUAL REGISTERING END-WISE ABUTMENT, FORMING A CROSSED-NETWORK LATTICE ADAPTED TO REST ON THE SOIL SAID MEMBERS EXTENDING UNDERNEATH THE FLAT UPPER SURFACES OF SAID PLATES AND ALONG THE JOINTED SIDES OF ADJACENT PLATES RIGHT TO THE PERIPHERY OF SAID FLOORING, SAID LATTICE OF CRUCIFORM GUTTER-SHAPED MEMBERS SUPPORTING SAID FLOORING AND BEING DETACHABLY CONNECTED THERETO BY REMOVABLE SECURING MEANS WHICH LOCK SAID PLATES IN POSITION, WHEREBY ANY GAS LEAKING DOWNWRDLY BETWEEN SAID JOINTED SIDES WILL BE LED OFF TO THE PERIPHERY OF SAID FLOORING.
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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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |