US3371534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level sensing apparatus
Assignee: Schneider Electric Systems USA Inc
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Filing: 1966-05-10
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Granted: 1968-03-05
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Expires: 1986-05-10
Abstract
No abstract record available.
Inventors
- 👤 Lloyd T Akeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:39
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/18; F; F17; F17C; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/0434
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2791906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |