US3493439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expendable immersion plug-in thermocouple unit
Assignee: Leeds and Northrup Co
•
Filing: 1966-02-28
•
Granted: 1970-02-03
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald P Boyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:52
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/533; G; G01; G01K; G01K7/00; G01K7/02; G01K7/025
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) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |