Patent US2372087A successfully refreshed from Google Patents.
US2372087A
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Boiler feed pump control
Assignee: Worthington Pump and Machinery Corp
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Filing: 1942-09-29
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Granted: 1945-03-20
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Expires: 1962-09-29
Abstract
No abstract record available.
Inventors
- 👤 Igor J Karassik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:15
CPC Classifications
B; B01; B01L; B01L7/00; F; F01; F01K; F01K7/00; F01K7/34; F01K7/38; F01K9/00; F01K9/02; F01K9/023; F25; F25B; F25B49/00; F25B49/02; F25D; F25D17/00; F25D17/02; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/275
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) | 1948-03-19 | 1948-09-18 | 1949-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-03-19 | 1952-09-18 | 1953-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-03-19 | 1956-09-18 | 1957-03-20 | $7700.00 | Window Closed / Lapsed |