Patent US3018311A successfully refreshed from Google Patents.
US3018311A
Expired / Lapsed
US
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Thermopile
Assignee: Kidde Inc
•
Filing: 1959-09-01
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Granted: 1962-01-23
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Expires: 1979-09-01
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Bagno
- 👤 John H Fasal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:03
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02; G01K7/04; G08; G08B; G08B17/00; G08B17/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49083
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
THE METHOD OF MAKING A THERMOPILE FROM A STRIP COMPOSED OF TWO EDGEWISE JOINED LENGTHWISE EXTENDING SECTIONS OF DISSIMILAR METALS, WHICH METHOD COMPRISES FORMING STAGGERED SLOTS AT OPPOSITE EDGES OF THE STRIP EXTENDING BEYOND THE JUNCTION OF THE SECTIONS TO PROVIDE INTERMEDIATE PORTIONS HAVING A JUNCTION THEREON, AND PLEATING AND FLODING THE STRIP LENGTHWISE TO COVER THE JUNCTION ON ALTERNATE INTERMEDIATE PORTIONS ON THE SIDE FACING IN THE DIRECTION IN WHICH THE THERMOPILE IS TO BEEXPOSED TO PROVIDE ALTERNATE HOT AND COLD JUNCTIONS ON THE STRIP.
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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |