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US3588412A
Expired / Lapsed
US
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Switch device including damping means
Assignee: Hundt and Weber GmbH
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Filing: 1969-03-04
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Granted: 1971-06-28
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Expires: 1989-03-04
Abstract
Abstract A SWITCH DEVICE FOR RELATIVELY HIGH-CAPACITY ELECTRICAL CIRCUITS. THE SWITCH DEVICE ELIMINATES CERTAIN UNDESIRABLE CHARACTERISTICS OF THE SWITCHING OPERATION BY DAMPING THE CONTACT OF THE CLOSING MEMBERS.
Inventors
- 👤 Wolfgang Koennecke
- 👤 Gerhard Schleifenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:07
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/22; H01H1/221; H01H1/225; H01H1/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |