Patent US2992842A successfully refreshed from Google Patents.
US2992842A
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US
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Assignee: RTX Corp
•
Filing: 1958-04-21
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Granted: 1961-07-18
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Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Richard P Shevchenko
- 👤 Dana B Waring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:09
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/003; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3404; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S277/00; Y10S277/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1243712A
Cited
US2679412A
Cited
US2835514A
Cited
US2801117A
Cited
US2820653A
Cited
US2857182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |