US3027331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric resistance heating elements and their manufacture
Assignee: Kanthal AB
•
Filing: 1960-11-25
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Granted: 1962-03-27
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Schrewelius Nils Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:53
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/58085; C04B35/58092; C04B35/622; C04B35/626; C04B35/628; C04B35/62802; C04B35/62805; C04B35/62807; C04B35/63; C04B35/6303; C04B35/6316; C04B35/64; H; H01; H01B; H01B1/00; H01C; H01C7/00; H01C7/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A SHAPED BODY PREPARED FROM HEAT-RESISTANT OXIDATION-PROOF MATERIAL CONSISTING MAINLY OF MOLYBDENUM DISILICIDE, SAID BODY BEING COMPOSED OF FINELY DIVIDED PARTICLES OF MOLYBDENUM DISILICATE FORMING A SOLID CONTINUOUS MATRIX HAVING EXTENSIVE INTERGRAM PORTIONS BONDED DIRECTLY TOGETHER WITHOUT ANY VISIBLE INTERPOSED CONSTITUENT, FINELY DIVIDED PARTICLES OF A CEREMIC PHASE DISPOSED BETWEEN THE PARTICLES OF MOLYBDENUM DISILICIDE AND SUBSTANTIALLY FILLING THE PORES OF SAID BODY, THERE BE ING NO OBSERVABLE CERAMIC LAYERS BETWEEN THE INTERPARTICLE BOUNDARIES OF THE MOLYBDENUM DISILICIDE GRANIS, SAID CERAMIC BEING FORMED BY FUSION OF A PLASTIC CLAY OF THE MONT-
Claim 2
Dependent Claim
92 words
A SHAPED BODY PREPARED FROM HEAT-RESISTANT OXIDATION-PROOF MATERIAL CONSISTING MAINLY OF MOLYBDENUM DISILICIDE, SAID BODY BEING COMPOSED OF FINELY DIVIDED PARTICLES OF MOLYBDENUM DISILICATE FORMING A SOLID CONTINUOUS MATRIX HAVING EXTENSIVE INTERGRAM PORTIONS BONDED DIRECTLY TOGETHER WITHOUT ANY VISIBLE INTERPOSED CONSTITUENT, FINELY DIVIDED PARTICLES OF A CEREMIC PHASE DISPOSED BETWEEN THE PARTICLES OF MOLYBDENUM DISILICIDE AND SUBSTANTIALLY FILLING THE PORES OF SAID BODY, THERE BE ING NO OBSERVABLE CERAMIC LAYERS BETWEEN THE INTERPARTICLE BOUNDARIES OF THE MOLYBDENUM DISILICIDE GRANIS, SAID CERAMIC BEING FORMED BY FUSION OF A PLASTIC CLAY OF THE MONT-
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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |