US3228636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parachute
Assignee: Individual
•
Filing: 1963-11-07
•
Granted: 1966-01-11
•
Expires: 1983-11-07
Abstract
No abstract record available.
Inventors
- 👤 Lemoigne Pierre Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:33
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/02; B64D17/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A PARACHUTE HAVING A CONOPY, SAID CANOPY COMPRISING AN ANNULAR OUTER CONOPY SECTION IN THE GENERAL SHAPE OF A DOWNWARDLY CONCAVE DOME AND A CENTRAL CANOPY SECTION IN THE GENERAL SHAPE OF AN INVERTED CONE WITH A DOWNWARDLY DIRECTED APEX, OUTER SHROUDING DEPENDING FROM SPACED POINTS OF THE OUTER PERIPHERY OF SAID OUTER CONOPY SECTION AND INNER SHROUDING DEPENDING FROM THE APEX OF SAID CENTRAL CANOPY SECTION, RADIALLY EXTENDING MEANS INTERCONNECTING THE INNER PERIPHERY OF THE OUTER CANOPY SECTION WITH THE OUTER PERIPHERY OF THE INNER CANOPY SECTION AND DEFINING BETWEEN SAID SECTIONS AN ANNULAR PERFORATE VENT ZONE, AND AN OUTLET CONE MEMBER HAVING ITS BASE CURCUMFERENCE ATTACHED TO THE CANOPY AROUND SAID ANNULAR VENT ZONE AND HAVING AN UPWARDLY DIRECTED APEX WITH AN OUTLET VENT OPENING THEREIN FOR CHANNELING THE UPWARD AIRFLOW ISSUING FROM THE ANNULAR VENT OF THE CANOPY.
Claim 2
Dependent Claim
141 words
A PARACHUTE HAVING A CONOPY, SAID CANOPY COMPRISING AN ANNULAR OUTER CONOPY SECTION IN THE GENERAL SHAPE OF A DOWNWARDLY CONCAVE DOME AND A CENTRAL CANOPY SECTION IN THE GENERAL SHAPE OF AN INVERTED CONE WITH A DOWNWARDLY DIRECTED APEX, OUTER SHROUDING DEPENDING FROM SPACED POINTS OF THE OUTER PERIPHERY OF SAID OUTER CONOPY SECTION AND INNER SHROUDING DEPENDING FROM THE APEX OF SAID CENTRAL CANOPY SECTION, RADIALLY EXTENDING MEANS INTERCONNECTING THE INNER PERIPHERY OF THE OUTER CANOPY SECTION WITH THE OUTER PERIPHERY OF THE INNER CANOPY SECTION AND DEFINING BETWEEN SAID SECTIONS AN ANNULAR PERFORATE VENT ZONE, AND AN OUTLET CONE MEMBER HAVING ITS BASE CURCUMFERENCE ATTACHED TO THE CANOPY AROUND SAID ANNULAR VENT ZONE AND HAVING AN UPWARDLY DIRECTED APEX WITH AN OUTLET VENT OPENING THEREIN FOR CHANNELING THE UPWARD AIRFLOW ISSUING FROM THE ANNULAR VENT OF THE CANOPY.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |