US976109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine.
Assignee: HATTIE M WELLMAN
•
Filing: 1909-04-02
•
Granted: 1910-11-15
•
Expires: 1929-04-02
Abstract
No abstract record available.
Inventors
- 👤 Calvin W Wellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:42
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/06; F04D1/063
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) | 1913-11-14 | 1914-05-16 | 1914-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-11-14 | 1918-05-16 | 1918-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-11-14 | 1922-05-16 | 1922-11-15 | $7700.00 | Window Closed / Lapsed |