US736039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeller for rotary blowers or pumps.
Assignee: Individual
•
Filing: 1903-02-10
•
Granted: 1903-08-11
•
Expires: 1923-02-10
Abstract
No abstract record available.
Inventors
- 👤 Harry Archible Wainwright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:35
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/084; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49329
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) | 1906-08-10 | 1907-02-09 | 1907-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-08-10 | 1911-02-09 | 1911-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-08-10 | 1915-02-09 | 1915-08-11 | $7700.00 | Window Closed / Lapsed |