US2434329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accumulator injection apparatus
Assignee: RTX Corp
•
Filing: 1944-08-23
•
Granted: 1948-01-13
•
Expires: 1964-08-23
Abstract
No abstract record available.
Inventors
- 👤 Donald E Meitzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:45
CPC Classifications
F; F02; F02M; F02M47/00; F02M47/02; F02M57/00; F02M57/02; F02M2700/00; F02M2700/13; F02M2700/1317; F02M2700/1335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US654140A
Cited
US1612600A
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US2012128A
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US1952154A
Cited
US1931691A
Cited
US1898916A
Cited
US2077185A
Cited
US2174898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-12 | 1951-07-14 | 1952-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-12 | 1955-07-14 | 1956-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-12 | 1959-07-14 | 1960-01-13 | $7700.00 | Window Closed / Lapsed |