Patent US2816423A successfully refreshed from Google Patents.
US2816423A
Expired / Lapsed
US
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Cooling means for assembly with a counterflow furnace
Assignee: Old Carco LLC
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Filing: 1955-04-28
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Granted: 1957-12-17
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Richard L Brugler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:19
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0007; F24F5/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2265272A
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US2319062A
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US1637276A
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US1945379A
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US2528720A
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US2638757A
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US2773676A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |