US3029642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor thermistor telemetering device
Assignee: Standard Oil Co
•
Filing: 1954-12-22
•
Granted: 1962-04-17
•
Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Burhans
- 👤 Jr Warren Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:42
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/002; H01; H01J; H01J49/00; H01J49/02; H01J49/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2643172A
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US2326200A
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US2287786A
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US2418836A
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US2509215A
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US2550109A
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US2745012A
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US2791693A
Cited
US2777065A
Cited
US2845547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |