US3226084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable blade propeller type pumps and pump turbines
Assignee: Library and Archives Canada
•
Filing: 1964-09-16
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Granted: 1965-12-28
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Expires: 1984-09-16
Abstract
No abstract record available.
Inventors
- 👤 Kanger Feodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:32
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/12; F03B3/14; F03B3/145; F05; F05B; F05B2260/00; F05B2260/70; F05B2260/76; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |