US3331573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parachute
Assignee: Raven Industries Inc
•
Filing: 1964-07-30
•
Granted: 1967-07-18
•
Expires: 1984-07-30
Abstract
No abstract record available.
Inventors
- 👤 James A Winker
- 👤 Gene P Hanson
- 👤 Russell A Pohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:23
CPC Classifications
B; B64; B64D; B64D17/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
A PARACHUTE CONSTRUCTION COMPRISING A PARACHUTE CANOPY HAVING A FIRST PANEL AREA AND HAVING A SECOND PANEL AREA WITH SAID AREAS BEING COEXTENSIVE AT THE CENTER OF THE CANOPY AND WITH SAID AREAS HAVING DOWNWARDLY EXTENDING ENDS, SAID ENDS WIDENING UNIFORMLY WITH STRAIGHT SIDE EDGES FROM A NARROWER PORTION ADJACENT THE CENTER OF THE CANOPY TO A WIDER PORTION AT THE ENDS, AND SHROUD LINES EXTENDING DOWNWARDLY AND CONNECTED TO THE PANEL AREAS OF THE CORNERS THEREOF.
References Cited (Backward Citations)
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US2412392A
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US2959385A
Cited
US2997263A
Cited
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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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |