US2237121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine blade shrouding
Assignee: Westinghouse Electric Corp
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Filing: 1939-09-26
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Granted: 1941-04-01
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Expires: 1959-09-26
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Stine
- 👤 William E Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/04; F; F01; F01D; F01D5/00; F01D5/12; F01D5/22; F01D5/225; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49908; Y10T29/49938; Y10T29/49943
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) | 1944-03-31 | 1944-09-30 | 1945-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-03-31 | 1948-09-30 | 1949-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-03-31 | 1952-09-30 | 1953-04-01 | $7700.00 | Window Closed / Lapsed |