US3401318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching element having accurately set threshold potential
Assignee: Danfoss AS
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Filing: 1965-12-20
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Granted: 1968-09-10
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Jensen Arne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:39
CPC Classifications
H; H01; H01C; H01C7/00; H01C7/04; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/70; H10; H10N; H10N70/00; H10N70/20; H10N70/801; H10N70/841; H10N70/8418; H10N70/881; H10N70/882; H10N70/8828
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |