US2908786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overload relay switch with ambient temperature compensation
Assignee: Arrow Hart and Hegeman Electric Co
•
Filing: 1957-01-04
•
Granted: 1959-10-13
•
Expires: 1977-01-04
Abstract
No abstract record available.
Inventors
- 👤 Harold E Schleicher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:05
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/16; H01H71/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1784450A
Cited
US2041511A
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GB436010A
Cited
US2171895A
Cited
US2235337A
Cited
US2416170A
Cited
US2392498A
Cited
US2863023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |