US3257526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control device with improved thermal operating means
Assignee: Westinghouse Electric Corp
•
Filing: 1964-07-16
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Granted: 1966-06-21
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Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 James B Ramsey
- 👤 Paul T Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:53
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/14; H01H71/16; H01H71/04; H01H71/162; H01H71/74; H01H71/7409; H01H73/00; H01H73/22; H01H73/30
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
AN ELECTRIC CONTROL DEVICE COMPRISING A PAIR OF COOPERABLE CONTACTS OPERABLE BETWEEN TWO POSITIONS, AN ACTUATING STRUCTURE COMPRISING A BIMETAL MEMBER, HEATER MEANS, MEANS BIASING SAID HEATER MEANS AGAINS SAID ACTUATING STRUCTURE INTO AN ABUTTING HEAT CONDUCTING RELATIONSHIP WITH SAID ACTUATING STRUCTURE, UPON THE OCCURRENCE OF A CURRENT THROUGH SAID CONTROL DEVICE ABOVE A
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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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |