US2633024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relative humidity indicator of the wet and dry bulb thermometer type
Assignee: Weston Electric Instrument Corp
•
Filing: 1950-01-04
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Granted: 1953-03-31
•
Expires: 1970-01-04
Abstract
No abstract record available.
Inventors
- 👤 Anthony H Lamb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:42
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US934409A
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US1630341A
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FR642783A
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US1890565A
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US1900813A
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US2112555A
Cited
US2177630A
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US2293064A
Cited
US2260245A
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US2276179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |