US3421446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction bend for centrifugal pumps
Assignee: JM Voith GmbH
•
Filing: 1967-07-12
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Granted: 1969-01-14
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Expires: 1987-07-12
Abstract
No abstract record available.
Inventors
- 👤 Michael Strscheletzly
- 👤 Heinz-Bernd Matthias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:36
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/66; F04D29/68; F04D29/688; F04D29/40; F04D29/42; F04D29/426; F04D29/4273; F04D29/44; F04D29/445; F04D29/448; F05; F05B; F05B2240/00; F05B2240/10; F05B2240/12; F05B2240/121
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |