US2451608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cabin pressure control means
Assignee: Honeywell Inc
•
Filing: 1944-10-30
•
Granted: 1948-10-19
•
Expires: 1964-10-30
Abstract
No abstract record available.
Inventors
- 👤 George L Borell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:53
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2013; G05D16/202; B; B64; B64D; B64D13/00; B64D13/02; B64D13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2194749A
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US2214181A
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GB521623A
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US2284984A
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US2342220A
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US2307199A
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US2391197A
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US2396116A
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US2419707A
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US2413027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-19 | 1952-04-19 | 1952-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-19 | 1956-04-19 | 1956-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-19 | 1960-04-19 | 1960-10-19 | $7700.00 | Window Closed / Lapsed |