US2475772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of blading rotors and other elements
Assignee: Allis Chalmers Corp
•
Filing: 1943-03-31
•
Granted: 1949-07-12
•
Expires: 1963-03-31
Abstract
No abstract record available.
Inventors
- 👤 Robert C Allen
- 👤 Cecil C Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:18
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3061; B; B23; B23K; B23K37/00; B23K37/04; B23K37/0426; B23K37/0435; B23K37/0443; B23K2101/00; B23K2101/001; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49321
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |