Patent US2801892A successfully refreshed from Google Patents.
US2801892A
Expired / Lapsed
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Humidifying device
Assignee: Individual
•
Filing: 1954-06-02
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Granted: 1957-08-06
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Expires: 1974-06-02
Abstract
No abstract record available.
Inventors
- 👤 Jose S Lombard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:35
CPC Classifications
A; A24; A24F; A24F25/00; A24F25/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86292; Y10T137/86324; Y10T137/86332
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649800A
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US975091A
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US977261A
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US1054159A
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US1514564A
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US2051777A
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US2276217A
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US2466076A
Cited
US2672883A
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US2671707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |