Patent US2463491A successfully refreshed from Google Patents.
US2463491A
Expired / Lapsed
US
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Cabin pressure regulator
Assignee: Garrett Corp
•
Filing: 1944-10-02
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Granted: 1949-03-01
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Expires: 1964-10-02
Abstract
No abstract record available.
Inventors
- 👤 James M Kemper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:08
CPC Classifications
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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US2226761A
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US2208554A
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US2265461A
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GB521623A
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US2316237A
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US2307199A
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US2419707A
Cited
US2399326A
Cited
US2393343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |