Patent US3060380A successfully refreshed from Google Patents.
US3021831A
Expired / Lapsed
US
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Furnace humidifier
Assignee: Individual
•
Filing: 1957-11-22
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Granted: 1962-02-20
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Expires: 1977-11-22
Abstract
No abstract record available.
Inventors
- 👤 Jerome J Byrge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:24
CPC Classifications
F; F24; F24D; F24D5/00; Y; Y10; Y10S; Y10S261/00; Y10S261/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US366568A
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US1305926A
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US1309737A
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US1587277A
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US1927607A
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US2001833A
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US2158543A
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US2286480A
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US2503002A
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US2842348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |