US3073927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breakers
Assignee: Westinghouse Electric Corp
•
Filing: 1959-10-16
•
Granted: 1963-01-15
•
Expires: 1979-10-16
Abstract
No abstract record available.
Inventors
- 👤 Robert H Hill
- 👤 Jr John C Hetzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:19
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1009
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
140 words
A CIRCUIT BREAKER COMPRISING RELATIVELY MOVABLE CONTACTS AND MEANS RELEASABLE TO EFFECT AUTOMATIC OPENING OF SAID CONTACTS, TRIP MEANS OPERABLE TO EFFECT RELEASE OF SAID RELEASABLE MEANS, SAID TRIP MEANS COMPRISING AN ENERGIZING WINDING, A MAGNET YOKE DISPOSED TO BE ENERGIZED BY SAID WINDING, AN ARMATURE MOVABLE RELATIVE TO SAID MAGNET YOKE, ADJUSTING MEANS INCLUDING AN ADJUSTING KNOB OPERABLE TO VARY THE POSITION OF SAID ARMATURE RELATIVE TO SAID MAGNET YOKE, A TRIP MEANS ENCLOSURE COMPRISING A BASE AND A COVER, SAID COVER COMPRISING A FIRST PART AND A SECOND PART, WHEN SAID PARTS ARE MATED TOGETHER SAID COVER COMPRISING A MAIN PANEL AND FOUR SIDE WALLS EXTENDING FROM SAID MAIN PANEL, SAID FIRST PART COMPRISING ONE OF SAID SIDE WALLS WHICH ONE SIDE WALL HAS AN OPENING THEREIN, MEANS FASTENING SAID FIRST PART TO SAID BASE, WHEN SAID FIRST
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |