US3468259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial relieving arrangement for impeller-type pumps
Assignee: Individual
•
Filing: 1967-11-06
•
Granted: 1969-09-23
•
Expires: 1987-11-06
Abstract
No abstract record available.
Inventors
- 👤 Stanislaw Morzynski
- 👤 Jerzy Kostyrko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/041; F04D29/0416
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2349024A
Cited
US2835514A
Cited
US2921533A
Cited
US3141677A
Cited
US3213798A
Cited
US3370542A
Cited
US3375014A
Cited
US3410565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |