Patent US4031652A successfully refreshed from Google Patents.
Patent US3604055A successfully refreshed from Google Patents.
Patent US3381918A successfully refreshed from Google Patents.
US3381918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-geometry aircraft
Assignee: Sud Aviation Societe Nationale de Constructions Aerdnaettiques
•
Filing: 1966-09-15
•
Granted: 1968-05-07
•
Expires: 1986-09-15
Abstract
No abstract record available.
Inventors
- 👤 Jacquart Raymond
- 👤 Haze Richard Desire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:24
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/40; B23; B23D; B23D15/00; B23D15/12; B23D15/14; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A VARIABLE GEOMETRY MONOPLANE AIRCRAFT HAVING TWO WINGS PIVOTALLY CONNECTED TO A LONGITUDINALLY DISPLACEABLE CENTRAL HINGE-POINT, IN COMBINATION, A CENTRAL HINGE PIVOT COMMON TO SAID TWO WINGS, A CENTRAL SLIDE BEARING SAID PIVOT, FIRST LONGITUDINAL GUIDE MEANS OF SAID CENTRAL SLIDE POSITIONED SUBSTANTIALLY PARALLEL TO THE AIRCRAFT FOREAFT AXIS, TWO LATERAL LINK MEMBERS HINGEDLY CONNECTED TO THE TWO WINGS AND TO TWO LATERAL SLIDES RESPECTIVELY, SECOND GUIDE MEANS OF SAID LATERAL SLIDES POSITONED SUBSTANTIALLY PARALLEL WITH SAID FIRST GUIDE MEANS, AND MEANS FOR MOVING EITHER ALL THE SLIDES AT THE SAME SPEED OR SAID CENTRAL SLIDE AT A DIFFERENT SPEED FROM SAID LATERAL SLIDES.
Claim 2
Dependent Claim
105 words
IN A VARIABLE GEOMETRY MONOPLANE AIRCRAFT HAVING TWO WINGS PIVOTALLY CONNECTED TO A LONGITUDINALLY DISPLACEABLE CENTRAL HINGE-POINT, IN COMBINATION, A CENTRAL HINGE PIVOT COMMON TO SAID TWO WINGS, A CENTRAL SLIDE BEARING SAID PIVOT, FIRST LONGITUDINAL GUIDE MEANS OF SAID CENTRAL SLIDE POSITIONED SUBSTANTIALLY PARALLEL TO THE AIRCRAFT FOREAFT AXIS, TWO LATERAL LINK MEMBERS HINGEDLY CONNECTED TO THE TWO WINGS AND TO TWO LATERAL SLIDES RESPECTIVELY, SECOND GUIDE MEANS OF SAID LATERAL SLIDES POSITONED SUBSTANTIALLY PARALLEL WITH SAID FIRST GUIDE MEANS, AND MEANS FOR MOVING EITHER ALL THE SLIDES AT THE SAME SPEED OR SAID CENTRAL SLIDE AT A DIFFERENT SPEED FROM SAID LATERAL SLIDES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |