Patent US3033538A successfully refreshed from Google Patents.
US1009928A
Expired / Lapsed
US
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End-thrust counterbalance for centrifugal pumps.
Assignee: BYRON JACKSON IRON WORKS Inc
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Filing: 1911-01-21
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Granted: 1911-11-28
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Expires: 1931-01-21
Abstract
No abstract record available.
Inventors
- 👤 Albert C Paulsmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:33
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2261; F04D29/2266
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) | 1914-11-27 | 1915-05-29 | 1915-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-11-27 | 1919-05-29 | 1919-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-11-27 | 1923-05-29 | 1923-11-28 | $7700.00 | Window Closed / Lapsed |