Patent US3434888A successfully refreshed from Google Patents.
US3434888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incased graphite segmented thermoelement
Assignee: Monsanto Research Corp
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Filing: 1965-10-22
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Granted: 1969-03-25
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Emil R Beaver Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:07
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/855; H10N10/8556
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A SEGMENTED THERMOELEMENT COMPRISING A SHAPED BODY CONSISTING ESSENTIALLY OF A GRAPHITE COLD END AND A GRAPHITE HOT END, AND INTERPOSED BETWEEN AND INTEGRAL WITH SAID ENDS, TWO SEGMENTS OF DIFFERENT SEMI-CONDUCTOR THERMOELECTRIC MATERIALS BONDED TOGETHER BY A THIN LAYER OF GRAPHITE AND HAVING A GRAPHITE CASING FIRMLY CONDED TO AND CIRCUMFERENTIALLY EXTENDING OVER THE EXTERIOR SURFACE OF THE GRAPHITE LAYER AND OVERLAPPING THE JUNCTIONS OF SAID LAYER WITH THE THERMOELECTRIC MATERIALS, SAID LAYER OF
Claim 2
Dependent Claim
75 words
A SEGMENTED THERMOELEMENT COMPRISING A SHAPED BODY CONSISTING ESSENTIALLY OF A GRAPHITE COLD END AND A GRAPHITE HOT END, AND INTERPOSED BETWEEN AND INTEGRAL WITH SAID ENDS, TWO SEGMENTS OF DIFFERENT SEMI-CONDUCTOR THERMOELECTRIC MATERIALS BONDED TOGETHER BY A THIN LAYER OF GRAPHITE AND HAVING A GRAPHITE CASING FIRMLY CONDED TO AND CIRCUMFERENTIALLY EXTENDING OVER THE EXTERIOR SURFACE OF THE GRAPHITE LAYER AND OVERLAPPING THE JUNCTIONS OF SAID LAYER WITH THE THERMOELECTRIC MATERIALS, SAID LAYER OF
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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) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |