Patent US3422235A successfully refreshed from Google Patents.
US3422235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arcing grid case support means
Assignee: Heinemann Electric Co
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Filing: 1966-01-28
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Granted: 1969-01-14
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Expires: 1986-01-28
Abstract
No abstract record available.
Inventors
- 👤 William W Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:17
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/02; H01H73/18; H01H9/00; H01H9/30; H01H9/34; H01H9/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A CIRCUIT BREAKER, THE COMBINATION OF AN INSULATING CASE, STATIONARY AND MOVABLE CONTACTS WITHIN SAID CASE, A MECHANISM FOR MOVING SAID MOVABLE CONTACT AWAY FROM SAID STATIONARY CONTACT, SAID CASE BEING DIVIDED INTO TWO APPROXIMATE HALF-CASE, EACH HALF-CASE BEING FORMED BY A SIDE WALL AND INTEGRAL PERIPHERAL WALLS, A CONDUCTOR WITHIN SAID CASE CARRYING SAID STATIONARY CONTACT, A PLURALITY OF MAGNETIZABLE GRIDS STACKED ABOVE SAID STATIONARY CONTACT, EACH GRID HAVING TWO LEGS AND A BASE, SAID HALFCASES HAVING FIRST AND SECOND OPPOSED WALLS DEFINING SIDE
Claim 2
Dependent Claim
86 words
IN A CIRCUIT BREAKER, THE COMBINATION OF AN INSULATING CASE, STATIONARY AND MOVABLE CONTACTS WITHIN SAID CASE, A MECHANISM FOR MOVING SAID MOVABLE CONTACT AWAY FROM SAID STATIONARY CONTACT, SAID CASE BEING DIVIDED INTO TWO APPROXIMATE HALF-CASE, EACH HALF-CASE BEING FORMED BY A SIDE WALL AND INTEGRAL PERIPHERAL WALLS, A CONDUCTOR WITHIN SAID CASE CARRYING SAID STATIONARY CONTACT, A PLURALITY OF MAGNETIZABLE GRIDS STACKED ABOVE SAID STATIONARY CONTACT, EACH GRID HAVING TWO LEGS AND A BASE, SAID HALFCASES HAVING FIRST AND SECOND OPPOSED WALLS DEFINING SIDE
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |