US3320503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial resistive polar coordinate date takeoff transmitter for a servo control
Assignee: Individual
•
Filing: 1955-05-11
•
Granted: 1967-05-16
•
Expires: 1975-05-11
Abstract
No abstract record available.
Inventors
- 👤 Allen H Schooley
- 👤 Whiteley Robert Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:17
CPC Classifications
F; F41; F41G; F41G5/00; F41G5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN COMBINATION, A SUBSTANTIALLY UNIFORM RESISTIVE SURFACE, A MULTIPHASE VOLTAGE SOURCE, MEANS FOR APPLYING SAID VOLTAGE SOURCE TO SAID RESISTIVE SURFACE TO DEVELOP A RADIAL VOLTAGE FIELD THEREON, ELECTRICALLY CONDUCTIVE PROBE MEANS POSITIONABLE AT ANY POINT ON SAID SURFACE AND MEANS FOR DETERMINING THE AMPLITUDE AND PHASE OF VOLTAGE DETECTED BY SAID PROBE MEANS.
Claim 2
Dependent Claim
54 words
IN COMBINATION, A SUBSTANTIALLY UNIFORM RESISTIVE SURFACE, A MULTIPHASE VOLTAGE SOURCE, MEANS FOR APPLYING SAID VOLTAGE SOURCE TO SAID RESISTIVE SURFACE TO DEVELOP A RADIAL VOLTAGE FIELD THEREON, ELECTRICALLY CONDUCTIVE PROBE MEANS POSITIONABLE AT ANY POINT ON SAID SURFACE AND MEANS FOR DETERMINING THE AMPLITUDE AND PHASE OF VOLTAGE DETECTED BY SAID PROBE MEANS.
References Cited (Backward Citations)
US2445213A
Cited
US2455963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |