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US3244889A
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US
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Photosensitive tracker with special x and y axis photocells having pluralities of parallel electrodes
Assignee: RTX Corp
•
Filing: 1961-07-06
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Granted: 1966-04-05
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Expires: 1981-07-06
Abstract
No abstract record available.
Inventors
- 👤 Richard J Preston
- 👤 Victor S Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:18
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/783; G01S3/784
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2955777A
Cited
US2966823A
Cited
US2789193A
Cited
US2981842A
Cited
US3026417A
Cited
US2937353A
Cited
US3067283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |