Patent US2816437A successfully refreshed from Google Patents.
US2816437A
Expired / Lapsed
US
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Moisture meter
Assignee: Central Scientific Co
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Filing: 1955-06-08
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Granted: 1957-12-17
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Expires: 1975-06-08
Abstract
No abstract record available.
Inventors
- 👤 Carl S Hornberger
- 👤 William R Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:25
CPC Classifications
G; G01; G01N; G01N5/00; G01N5/04; G01N5/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |