Patent US2991706A successfully refreshed from Google Patents.
US2991706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for distributing conditioned air in aircraft
Assignee: RTX Corp
•
Filing: 1958-02-03
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Granted: 1961-07-11
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Stanley G Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:18
CPC Classifications
B; B64; B64D; B64D13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2191141A
Cited
US2160956A
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US2316237A
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US2385664A
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US2463487A
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US2425000A
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US2412071A
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US2723615A
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US2814241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |