US2346236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary blower
Assignee: EUGENE L ALEXANDER
•
Filing: 1942-03-28
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Granted: 1944-04-11
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Expires: 1962-03-28
Abstract
No abstract record available.
Inventors
- 👤 Samuel P Rose
- 👤 Somervell Somervell Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:22
CPC Classifications
F; F04; F04B; F04B45/00; F04B45/02; F04B45/022; F04B27/00; F04B27/08; F04B27/0804; F04C; F04C18/00; F04C18/48; F04C18/54
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) | 1947-04-11 | 1947-10-11 | 1948-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-11 | 1951-10-11 | 1952-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-11 | 1955-10-11 | 1956-04-11 | $7700.00 | Window Closed / Lapsed |