US1554614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine blading
Assignee: Westinghouse Electric Corp
•
Filing: 1922-09-13
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Granted: 1925-09-22
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Expires: 1942-09-13
Abstract
No abstract record available.
Inventors
- 👤 Robert C Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:18
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/12; F01D5/22; F01D5/225; Y; Y10; Y10S; Y10S415/00; Y10S415/91; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321; Y10T29/49336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-09-21 | 1929-03-23 | 1929-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-21 | 1933-03-23 | 1933-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-21 | 1937-03-23 | 1937-09-22 | $7700.00 | Window Closed / Lapsed |