Patent US3404568A successfully refreshed from Google Patents.
US3404568A
Expired / Lapsed
US
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Scanning transducing mechanism
Assignee: G A PLATON Ltd
•
Filing: 1965-08-17
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Granted: 1968-10-08
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Expires: 1985-08-17
Abstract
No abstract record available.
Inventors
- 👤 Humber Edward John
- 👤 Ryland John Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:10
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/24; G01R; G01R17/00; G01R17/02; G01R17/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2091303A
Cited
US2715705A
Cited
US2921469A
Cited
US2841011A
Cited
US3094214A
Cited
US3220250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |