US3501957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expendable immersion thermocouple assembly and compensating circuit
Assignee: Leeds and Northrup Co
•
Filing: 1968-02-26
•
Granted: 1970-03-24
•
Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 Louis R Jones Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:39
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2677005A
Cited
US2769340A
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US2861114A
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US3085436A
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US3280630A
Cited
US3347099A
Cited
US3396580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |