US3419798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displacement sensing transducer using hall effect devices
Assignee: Doosan Bobcat North America Inc
•
Filing: 1965-12-17
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Granted: 1968-12-31
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Expires: 1985-12-17
Abstract
No abstract record available.
Inventors
- 👤 William B Walton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:25
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/142; G01D5/145; G01D5/147; H; H10; H10N; H10N52/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3124725A
Cited
US3243692A
Cited
US3359522A
Cited
US2602660A
Cited
GB938705A
Cited
US3185866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |