Patent US2461222A successfully refreshed from Google Patents.
US2461222A
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Accumulator injection system
Assignee: RTX Corp
•
Filing: 1943-05-11
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Granted: 1949-02-08
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Expires: 1963-05-11
Abstract
No abstract record available.
Inventors
- 👤 Donald E Meitzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:24
CPC Classifications
F; F02; F02B; F02B71/00; F02M; F02M47/00; F02M47/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1943718A
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US2016613A
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US2038442A
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US2102121A
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US2064976A
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US2132083A
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US2112368A
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US2223759A
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US2344058A
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US2368013A
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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) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |