US2859936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressor blade and method of forming same
Assignee: Cincinnati Testing and Research Laboratories
•
Filing: 1954-03-03
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Granted: 1958-11-11
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Expires: 1974-03-03
Abstract
No abstract record available.
Inventors
- 👤 Elmer P Warnken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:59
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/282; B; B29; B29C; B29C45/00; B29C45/0005; B29C45/14; B29C45/14778; B29C45/14786; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/28; B29C70/40; B29C70/42; B29C70/46; B29C70/48; B29C70/54; B29C70/56; B29C70/68; B29C70/86; B29D; B29D99/00; B29D99/0025; B64; B64C; B64C11/00; B64C11/16; B64C11/20; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; B29L; B29L2031/00; B29L2031/08; B29L2031/082; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S264/00; Y10S264/53; Y10S273/00; Y10S273/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1035364A
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GB501649A
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GB502409A
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US2182812A
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US2621140A
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US2630868A
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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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |