Patent US3299378A successfully refreshed from Google Patents.
US3299378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetically actuated contactor having a linearly movable contact carrier
Assignee: Ward Leonard Electric Co
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Filing: 1965-03-25
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Granted: 1967-01-17
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Jr John Scheib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:08
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/546
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
AN ELECTRICAL CONTACTOR COMPRISING A CORE AND COIL ASSEMBLY INCLUDING A MOVABLE ARMATURE ACTUATED BY SAID CORE AND COIL ASSEMBLY, A CONTACT CARRIER HAVING MEANS FOR CONNECTING SAID ARMATURE TO SAID CARRIER TO ACTUATE SAID CARRIER AND HAVING MOVABLE CONTACT SUPPORTING MEANS, A CASING FORMED BY TWO UPPER AND LOWER HOLDING MEMBERS ENCLOSING AND SUPPORTING SAID CORE AND COIL ASSEMBLY, ONE OF SAID HOLDING MEMBERS HAVING MEANS SLIDABLY SUPPORTING AND GUIDING SAID ARMATURE AND CONTACT CARRIER IN A GIVEN DIRECTION AND PLANE OF MOVEMENT, EACH OF SAID HOLDING MEMBERS HAVING A FIXED CONTACT HOLDING MEANS ABOVE AND BELOW SAID CONTACT CARRIER AND PLANE OF MOVEMENT, SETS OF FIXED CONTACTS EXTERIORLY MOUNTED ON SAID FIXED CONTACT HOLDING MEANS AND EXTENDING TOWARDS SAID CONTACT CARRIER, SAID CONTACT CARRIER EXTENDING EXTERIORLY
References Cited (Backward Citations)
US2897316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |