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US2973495A
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Temperature measuring device
Assignee: Engelhard Industries Inc
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Filing: 1958-06-20
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Granted: 1961-02-28
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Expires: 1978-06-20
Abstract
No abstract record available.
Inventors
- 👤 Herbert J Greenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:28
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2102030A
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US2135078A
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US2379530A
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US2441564A
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US2465981A
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US2579271A
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US2588014A
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US2590041A
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US2753714A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |