US3406331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensating power supply circuit for non-linear resistance bridges
Assignee: Emerson Process Management Ltd
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Filing: 1966-03-23
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Granted: 1968-10-15
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Expires: 1986-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robert C Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:38
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/16; G01K7/18; G01K7/20; G01K7/21; G01R; G01R17/00; G01R17/10; G01R17/105; G05; G05B; G05B1/00; G05B1/01; G05B1/02; G05B1/027; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/462
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) | 1971-10-15 | 1972-04-15 | 1972-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-15 | 1976-04-15 | 1976-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-15 | 1980-04-15 | 1980-10-15 | $7700.00 | Window Closed / Lapsed |