Patent US2528613A successfully refreshed from Google Patents.
US2528613A
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Temperature control apparatus for vent condensers
Assignee: Worthington Pump and Machinery Corp
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Filing: 1947-12-20
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Granted: 1950-11-07
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Expires: 1967-12-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Sebald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:43
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0047; B01D19/0063; C; C02; C02F; C02F5/00; C02F5/02; C02F5/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427193A
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US1638803A
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US2168584A
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US2241873A
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US2223634A
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US2273438A
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US2296325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |