US3751987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic balancing machines
Assignee: Individual
•
Filing: 1971-06-29
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Granted: 1973-08-14
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Expires: 1991-06-29
Abstract
Abstract The present circuit arrangement provides a control signal or control signals for an automatic balancing machine, which signals are displayed on the screen of a cathode ray tube preferably in the manner of a plan position indicator. The displayed signal is produced from a balance information signal and a reference information signal supplied to the inputs of a multiplier circuit the outputs of which are connected to a display circuit which in turn is connected to control a cathode ray tube.
Inventors
- 👤 B Whitmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:11
CPC Classifications
G; G01; G01M; G01M1/00; G01M1/14; G01M1/16; G01M1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |