US2553145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water injection apparatus
Assignee: RTX Corp
•
Filing: 1944-04-01
•
Granted: 1951-05-15
•
Expires: 1964-04-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:25
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S261/00; Y10S261/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22447E
Cited
US1338993A
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US2076606A
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FR828458A
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US2330650A
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US2361227A
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US2348008A
Cited
US2392565A
Cited
US2482040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |