US3234503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drag chute and flotation device
Assignee: Gould Inc
•
Filing: 1963-03-27
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Granted: 1966-02-08
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Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Francis X Wojciechowski
- 👤 Harald E Karlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:10
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/004; G10K11/006; B; B63; B63B; B63B22/00; B63B22/003; B64; B64D; B64D1/00; B64D1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
AN ASSEMBLY FOR AN ARTICLE TO BE DROPPED INTO A BODY OF LIQUID, COMPRISING: (A) A MEMBER INCLUDING A BODY PORTION HAVING AN OPENING AT ITS LOWER EXTREMITY, SAID OPENING HAVING A SUBSTANTIALLY REDUCED DIAMETER AS COMPARED TO THE DIAMETER OF SAID BODY PORTION, (B) MEANS AFFIXED TO SAID MEMBER FOR SUSPENDING AN ARTICLE FROM THE LOWER EXTREMITY THEREOF IN A POSITION SUCH AS TO CAUSE SAID BODY PORTION TO BECOME GRADUALLY INFLATED BY AIR WHICH IS INTRODUCED THROUGH SAID OPENING DURING THE DESCENT OF SAID ASSEMBLY, AND IN A POSITION WHICH CAUSES SAID OPENING TO BE DRAWN BELOW THE SURFACE OF SAID BODY OF LIQUID AT THE TERMINATION OF SAID DESCENT SO AS TO TRAP THE AIR IN
References Cited (Backward Citations)
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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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |