Patent US2933044A successfully refreshed from Google Patents.
US2933044A
Expired / Lapsed
US
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Turbo monobloc pump
Assignee: Worthington Corp
•
Filing: 1958-02-03
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Granted: 1960-04-19
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 John G Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:26
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/16; F01D25/166; F04; F04D; F04D13/00; F04D13/02; F04D13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2606501A
Cited
US2803194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |