US3090916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple range measuring system for non-linear input signals using feedback gain control means to provide a linear response
Assignee: Hagan Chemicals and Controls Inc
•
Filing: 1961-05-26
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Granted: 1963-05-21
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Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 Gill Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:19
CPC Classifications
G; G01; G01R; G01R15/00; G01R15/08; G01R15/09; G01R19/00; G01R19/0046; G01R19/0076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB681214A
Cited
US2989701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |