Patent US3278705A successfully refreshed from Google Patents.
US3278705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic switch
Assignee: GTE Sylvania Inc
•
Filing: 1964-03-26
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Granted: 1966-10-11
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Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Philip J Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:59
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/64; H01H37/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A THERMOSTATIC SWITCH COMPRISING: A HERMETICALLY SEALED GLASS EVELOPED; A PAIR OF POSTS SUPPORTED IN SPACED RELATIONSHIP AND SUBSTANTIALLY PARALLEL TO ONE ANOTHER WITHIN SAID ENVELOPE; A THERMOSTATIC PLATE, HAVING A CENTRALLY LOACTED DIMPLE FORMED IN THER FRONT FACE THEREOF, MOUNTED ON ONE OF SAID POSTS; A FIRST ELECTRICAL CONTACT MEMBER MOUNTED ON SAID THERMOSTATIC PLATE; A SECOND ELECTRICAL CONTACT MEMBER MOUNTED ON THE OTHER OF SAID POSTS, SAID FIRST AND SAID SECOND ELECTRICAL CONTACT MEMBERS BEING DISPOSED IN OPERATIVE RELATIONSHIP WITH RESPECT TO ONE ANOTHER; AND HEAT SINK IN THE FORM OF A METAL PLATE SECURED TO THE LOWER FRONT FACE OF SAID THERMOSTATIC PLATE, SAID HEAT SINK LYING SUBSTANTIALLY PARALLEL TO THE
Claim 2
Dependent Claim
114 words
A THERMOSTATIC SWITCH COMPRISING: A HERMETICALLY SEALED GLASS EVELOPED; A PAIR OF POSTS SUPPORTED IN SPACED RELATIONSHIP AND SUBSTANTIALLY PARALLEL TO ONE ANOTHER WITHIN SAID ENVELOPE; A THERMOSTATIC PLATE, HAVING A CENTRALLY LOACTED DIMPLE FORMED IN THER FRONT FACE THEREOF, MOUNTED ON ONE OF SAID POSTS; A FIRST ELECTRICAL CONTACT MEMBER MOUNTED ON SAID THERMOSTATIC PLATE; A SECOND ELECTRICAL CONTACT MEMBER MOUNTED ON THE OTHER OF SAID POSTS, SAID FIRST AND SAID SECOND ELECTRICAL CONTACT MEMBERS BEING DISPOSED IN OPERATIVE RELATIONSHIP WITH RESPECT TO ONE ANOTHER; AND HEAT SINK IN THE FORM OF A METAL PLATE SECURED TO THE LOWER FRONT FACE OF SAID THERMOSTATIC PLATE, SAID HEAT SINK LYING SUBSTANTIALLY PARALLEL TO THE
References Cited (Backward Citations)
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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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |