US3408560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for increasing the virtual sensing field length of sensing elements in electronic control instruments, mainly in the textile industry
Assignee: Zellweger Uster AG
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Filing: 1964-10-01
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Granted: 1968-10-29
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Expires: 1984-10-01
Abstract
No abstract record available.
Inventors
- 👤 Felix Ernst
- 👤 Meili Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:48
CPC Classifications
H; H03; H03G; H03G5/00; B; B65; B65H; B65H63/00; B65H63/06; B65H63/062; B65H63/064; G; G01; G01B; G01B7/00; G01B7/12; G01B7/125; H03G1/00; H03G1/0005; H03G1/0035; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |