Patent US3608362A successfully refreshed from Google Patents.
US3608362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electronic equipment
Assignee: STAVELEY INSTRUMENTS Inc 421 NORTH QUAY STREET KENNEWICK WA 99336 A CORP OF WA
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Filing: 1969-04-03
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Granted: 1971-09-28
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Expires: 1989-04-03
Abstract
Abstract FOR CARRYING. THE OSCILLOSCOPE IS MOUNTED WITH THE SCREEN FACING DOWNWARD, AND IS VIEWED THROUGH A LIGHT SHIELD AND DOUBLE REFLECTING MEANS. A PORTABLE CATHODE RAY OSCILLOSCOPE TYPE OF EQUIPMENT HAVING A BACK PACK CONTAINING A POWER SUPPLY AND A CHEST PACK CONTAINING OPERATING CONTROLS AND THE DISPLAY SCREEN CONVENIENTLY PRESENTED TO THE BEARER FOR VIEWING THE OPERATION. THE TWO PACKS ARE CONNECTED BY SHOULDER STRAPS
Inventors
- 👤 George J Chakar
- 👤 Frederick L Eberle
- 👤 Bernard Ostrofsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:17
CPC Classifications
G; G01; G01N; G01N29/00; G01N29/22; G01N29/223; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02854
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |