Patent US3198995A successfully refreshed from Google Patents.
US3198995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarized electromagnetic relay
Assignee: Allied Control Co Inc
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Filing: 1961-10-09
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Granted: 1965-08-03
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Expires: 1981-10-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Grebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:33
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/22; H01H51/2227
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A POLARIZED RELAY COMPRISING A MAGNETIZING COIL, A CORE MEMBER EXTENDING THROUGH THE COIL, A PAIR OF SPACED POLE PIECES SECURED TO THE CORE NUMBER, EACH POLE PIECE INCLUDING A GENERALLY U-SHAPED PORTION HAVING A PAIR OF SPACED END PARTS, A NON-MAGNETIC UNIT SECURED TO THE POLE PIECES, AND EXTENDING ACROSS THE SPACE BETWEEN THE POLE PIECES, AN ARMATURE CARRIED BY THE NON-MAGNETIC UNIT AND PIVOTAL ABOUT AN AXIS WHICH IS NORMAL TO AND INTERSECTS THE AXIS OF THE COIL, SAID ARMATURE BEING POSITIONED BETWEEN THE U-SHAPED PORTIONS OF THE POLE PIECES AND INCLUDING A PERMANENT MAGNET AND A MAGNETIC MEM-
Claim 2
Dependent Claim
101 words
A POLARIZED RELAY COMPRISING A MAGNETIZING COIL, A CORE MEMBER EXTENDING THROUGH THE COIL, A PAIR OF SPACED POLE PIECES SECURED TO THE CORE NUMBER, EACH POLE PIECE INCLUDING A GENERALLY U-SHAPED PORTION HAVING A PAIR OF SPACED END PARTS, A NON-MAGNETIC UNIT SECURED TO THE POLE PIECES, AND EXTENDING ACROSS THE SPACE BETWEEN THE POLE PIECES, AN ARMATURE CARRIED BY THE NON-MAGNETIC UNIT AND PIVOTAL ABOUT AN AXIS WHICH IS NORMAL TO AND INTERSECTS THE AXIS OF THE COIL, SAID ARMATURE BEING POSITIONED BETWEEN THE U-SHAPED PORTIONS OF THE POLE PIECES AND INCLUDING A PERMANENT MAGNET AND A MAGNETIC MEM-
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |