Patent US3236973A successfully refreshed from Google Patents.
US3236973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater element for vane type snap-action devices
Assignee: HUDSON LAMP CO
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Filing: 1964-02-28
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Granted: 1966-02-22
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Expires: 1984-02-28
Abstract
No abstract record available.
Inventors
- 👤 Welsh James William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:22
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/06; H01H61/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A VANE TYPE SNAP-ACTION DEVICE COMPRISING A BASE, A PAIR OF ELECTRICAL TERMINALS MOUNTED ON SAID BASE, SAID TERMINALS HAVING ARM PORTIONS EXTENDING THROUGH THE TOP OF SAID BASE, A SNAP-ACTION VANE MOUNTED ON THE ARM OF ONE OF SAID TERMINALS, A MOTIVE ELEMENT RIBBON FIXED ACROSS AND HELD UNDER TENSION BY SAID VANE, A PAIR OF NORMALLY
Claim 2
Dependent Claim
58 words
A VANE TYPE SNAP-ACTION DEVICE COMPRISING A BASE, A PAIR OF ELECTRICAL TERMINALS MOUNTED ON SAID BASE, SAID TERMINALS HAVING ARM PORTIONS EXTENDING THROUGH THE TOP OF SAID BASE, A SNAP-ACTION VANE MOUNTED ON THE ARM OF ONE OF SAID TERMINALS, A MOTIVE ELEMENT RIBBON FIXED ACROSS AND HELD UNDER TENSION BY SAID VANE, A PAIR OF NORMALLY
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |