US3097819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety parachute for disabled airplanes
Assignee: Individual
•
Filing: 1962-05-14
•
Granted: 1963-07-16
•
Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 John E Raistakka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:47
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/08; B64D25/12; B64D17/00; B64D17/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PARACHUTE ASSEMBLY FOR AIRCRAFT COMPRISING A RECEPTACLE SECURED WITHIN THE FUSELAGE OF THE AIRCRAFT AND OPEN EXTERIORLY THEREOF, REMOTELY ACTUATED HATCH COVERS FOR SAID RECEPTACLE, A MAIN PARACHUTE IN SAID RECEPTACLE AN AUXILIARY PARACHUTE SECURED TO SAID MAIN PARACHUTE IN SAID RECEPTACLE, A HOLLOW LIGHTER THAN AIR BODY SECURED TO SAID AUXILIARY PARACHUTE, MEANS FOR RELEASING SAID BODY AND SAID AUXILIARY PARACHUTE PRIOR TO RELEASE OF SAID MAIN PARACHUTE, SAID LIGHTER THAN AIR BODY COMPRISING A HELIUM FILLED CONE, A STEM ON SAID CONE, AND SPRING EJECTING MEANS FOR SAID STEM.
Claim 2
Dependent Claim
92 words
A PARACHUTE ASSEMBLY FOR AIRCRAFT COMPRISING A RECEPTACLE SECURED WITHIN THE FUSELAGE OF THE AIRCRAFT AND OPEN EXTERIORLY THEREOF, REMOTELY ACTUATED HATCH COVERS FOR SAID RECEPTACLE, A MAIN PARACHUTE IN SAID RECEPTACLE AN AUXILIARY PARACHUTE SECURED TO SAID MAIN PARACHUTE IN SAID RECEPTACLE, A HOLLOW LIGHTER THAN AIR BODY SECURED TO SAID AUXILIARY PARACHUTE, MEANS FOR RELEASING SAID BODY AND SAID AUXILIARY PARACHUTE PRIOR TO RELEASE OF SAID MAIN PARACHUTE, SAID LIGHTER THAN AIR BODY COMPRISING A HELIUM FILLED CONE, A STEM ON SAID CONE, AND SPRING EJECTING MEANS FOR SAID STEM.
References Cited (Backward Citations)
US1702422A
Cited
US987819A
Cited
US1443745A
Cited
GB302671A
Cited
US2352721A
Cited
US2513867A
Cited
US2628307A
Cited
US2879017A
Cited
US2973171A
Cited
US2967677A
Cited
US2967685A
Cited
US3072372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |