US3720837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring and indicating apparatus
Assignee: Bayer Corp
•
Filing: 1971-12-20
•
Granted: 1973-03-13
•
Expires: 1991-12-20
Abstract
Abstract APPARATUS CIRCUITRY FOR MEASURING AND PROVIDING AN INDICATION OF A SENSED CHARACTERISTIC, SUCH AS REFLECTED LIGHT, IS DESCRIBED. IT COMPRISES IN COMBINATION A SENSOR, A VOLTAGE CONTROLLED OSCILLATOR FUNCTIONING AS AN ANALOG-TODIGITAL CONVERTOR, SCALERS TO PROVIDE CERTAIN COUNT VALUES, A COMPUTATION UNIT CONNECTED TO SUCH SCALERS TO PROVIDE AN OUTPUT COUNT WHICH IS DIRECTLY RELATED TO A FUNCTION OF THE SENSED CHARACTERISTIC BEING MEASURED, AND A DECODER SCALER AND INDICATOR CAPABLE OF CONVERTING THE COMPUTATION UNIT OUTPUT TO A SUITABLE SIGNAL SO AS TO PROVIDE AN INDICATION, SUCH AS A PRINTED SYMBOL, OF THE SENSED CHARACTERISTIC.
Inventors
- 👤 A Clemens
- 👤 Verne Hurtle R La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:44
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |