US1073623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam-turbine blade.
Assignee: RIDGWAY DYNAMO AND ENGINE Co
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Filing: 1913-07-23
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Granted: 1913-09-23
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Expires: 1933-07-23
Abstract
No abstract record available.
Inventors
- 👤 Alden B Owen
- 👤 Thomas Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:09
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/22; F01D5/225; 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)
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) | 1916-09-22 | 1917-03-24 | 1917-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-09-22 | 1921-03-24 | 1921-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-09-22 | 1925-03-24 | 1925-09-23 | $7700.00 | Window Closed / Lapsed |