Patent US3358950A successfully refreshed from Google Patents.
US3358950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for discharging personnel and cargo from vehicles
Assignee: WELSCH
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Filing: 1965-09-24
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Granted: 1967-12-19
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Expires: 1985-09-24
Abstract
No abstract record available.
Inventors
- 👤 Welsch Fred Daniel
- 👤 Clarence F Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:04
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A COMBINATION COMPRISING: A HOVERING AIRCRAFT; FIRST MEANS CARRIED BY SAID AIRCRAFT DEFINING AN AT LEAST PARTIALLY SHIELDED PASSAGE EXTENDING GENERALLY DOWNWARD FROM SAID HOVERING AIRCRAFT; AND SECOND MEANS CARRIED BY SAID AIRCRAFT DEFINING A SUPPORT DISPOSED AT LEAST PARTIALLY WITHIN SAID PASSAGE AND EXTENDING GENERALLY DOWNWARD FROM SAID AIRCRAFT.
Claim 2
Dependent Claim
50 words
A COMBINATION COMPRISING: A HOVERING AIRCRAFT; FIRST MEANS CARRIED BY SAID AIRCRAFT DEFINING AN AT LEAST PARTIALLY SHIELDED PASSAGE EXTENDING GENERALLY DOWNWARD FROM SAID HOVERING AIRCRAFT; AND SECOND MEANS CARRIED BY SAID AIRCRAFT DEFINING A SUPPORT DISPOSED AT LEAST PARTIALLY WITHIN SAID PASSAGE AND EXTENDING GENERALLY DOWNWARD FROM SAID AIRCRAFT.
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |