US3461352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacity level switches
Assignee: Fielden Electronics Ltd
•
Filing: 1964-09-28
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Granted: 1969-08-12
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur Worland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:14
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/266; G01F23/265; H; H03; H03K; H03K17/00; H03K17/94; H03K17/945; H03K17/955; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/29
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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |