Patent US2749753A successfully refreshed from Google Patents.
US2749753A
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Temperature measuring device
Assignee: Northrop Grumman Corp
•
Filing: 1953-05-11
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Granted: 1956-06-12
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 William H Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:00
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/16; G01K7/18; G01K7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US845413A
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US1460530A
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US1867870A
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GB251291A
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US1715374A
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US2113610A
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US2182554A
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US2181981A
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US2285118A
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US2463984A
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US2680583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |