Patent US2508530A successfully refreshed from Google Patents.
US2508530A
Expired / Lapsed
US
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Humidifier
Assignee: Individual
•
Filing: 1945-01-03
•
Granted: 1950-05-23
•
Expires: 1965-01-03
Abstract
No abstract record available.
Inventors
- 👤 George S Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:33
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/08; F24F6/10; F24F6/105; Y; Y10; Y10S; Y10S261/00; Y10S261/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191023794A
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US1079935A
Cited
GB308790A
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US2175469A
Cited
FR823170A
Cited
US2173073A
Cited
US2203685A
Cited
US2223456A
Cited
US2322469A
Cited
US2325061A
Cited
US2363262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |