Patent US2578773A successfully refreshed from Google Patents.
US2578773A
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Control for cabin pressure regulators
Assignee: Garrett Corp
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Filing: 1948-04-20
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Granted: 1951-12-18
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Expires: 1968-04-20
Abstract
No abstract record available.
Inventors
- 👤 Robert A Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:25
CPC Classifications
B; B64; B64D; B64D13/00; B64D13/02; B64D13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2449231A
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US2450076A
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US2450881A
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GB563553A
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US2396116A
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US2424491A
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US2463488A
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US2473776A
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US2451608A
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US2463489A
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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) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |