US2747158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated circuit having non-linear resistor
Assignee: Individual
•
Filing: 1950-05-24
•
Granted: 1956-05-22
•
Expires: 1970-05-24
Abstract
No abstract record available.
Inventors
- 👤 Bel Clarence J Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:55
CPC Classifications
G; G05; G05B; G05B1/00; G05B1/01; G05B1/02; G05B1/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1883613A
Cited
US2050703A
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US2114330A
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GB456947A
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GB547304A
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US2332073A
Cited
US2278633A
Cited
US2304044A
Cited
US2356269A
Cited
US2533287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |