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US2855186A
Expired / Lapsed
US
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Base-board convectors
Assignee: Young Radiator Co
•
Filing: 1954-09-03
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Granted: 1958-10-07
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Expires: 1974-09-03
Abstract
No abstract record available.
Inventors
- 👤 Paul F Brinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:24
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/02; F24D19/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US447297A
Cited
US2195540A
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US2487287A
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US2656156A
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US2662747A
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US2722403A
Cited
US2796238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |