US3277222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for the preparation of products of molybdenum carbide
Assignee: Pechiney SA
•
Filing: 1963-11-05
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Granted: 1966-10-04
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Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Vachet Pierre
- 👤 Molinier Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:30
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; B; B22; B22F; B22F3/00; B22F3/22; B22F3/225; C04B35/515; C04B35/56; C04B35/5607; C04B2235/00; C04B2235/02; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5436; C04B2235/60; C04B2235/602; C04B2235/65; C04B2235/656; C04B2235/6562; C04B2235/70; C04B2235/74; C04B2235/77; C04B2235/94; C04B2235/95
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A COMPOSITION FOR USE IN THE PREPARATION OF MOLDED PRODUCTS OF MOLYBDENUM CARBIDE COMPRISING A MIXTURE OF UNFRITTED MOLYBDENUM CARBIDE POWDER AND GRANULES OF MOLYBDENUM CARBIDE WHICH HAS BEEN HEATED TO A TEMPERATURE WITHIN THE RANGE OF 1600-2300*C. AND IN WHICH THE LATTER MAKES UP TO 70 PERCENT BY WEIGHT OF THE CARBIDE MIXTURE AND IN WHICH THE CARBIDES ARE MIXED TO FORM A PASTE CONSISTING ESSENTIALLY OF THE CARIBDE, A WAX PRESENT IN AN AMOUNT WITHIN THE RANGE OF 1 TO 10 PERCENT BY WEIGHT OF THE CARBIDE AND A SATURATED ORGANIC HYDROCARBON LIQUID PRESENT IN AN AMOUNT WITHIN THE RANGE OF 5 TO 20 PERCENT BY VOLUME OF THE CARBIDE.
Claim 2
Dependent Claim
112 words
A COMPOSITION FOR USE IN THE PREPARATION OF MOLDED PRODUCTS OF MOLYBDENUM CARBIDE COMPRISING A MIXTURE OF UNFRITTED MOLYBDENUM CARBIDE POWDER AND GRANULES OF MOLYBDENUM CARBIDE WHICH HAS BEEN HEATED TO A TEMPERATURE WITHIN THE RANGE OF 1600-2300*C. AND IN WHICH THE LATTER MAKES UP TO 70 PERCENT BY WEIGHT OF THE CARBIDE MIXTURE AND IN WHICH THE CARBIDES ARE MIXED TO FORM A PASTE CONSISTING ESSENTIALLY OF THE CARIBDE, A WAX PRESENT IN AN AMOUNT WITHIN THE RANGE OF 1 TO 10 PERCENT BY WEIGHT OF THE CARBIDE AND A SATURATED ORGANIC HYDROCARBON LIQUID PRESENT IN AN AMOUNT WITHIN THE RANGE OF 5 TO 20 PERCENT BY VOLUME OF THE CARBIDE.
Claim 3
Independent Claim
139 words
THE METHOD OF PRODUCING FINISHED AND SEMI-FINISHED PRODUCTS OF MOLYBDENUM CARBDE COMPRISING THE STEPS OF PROVIDING THE CARBIDE IN FINELY DIVIDED FROM, MIXING THE CARBIDE TO FORM A PASTE CONSISTING ESSENTIALLY OF THE CARBIDE, A WAX AND A SATURATED ORGANIC HYDROCARBON SOLVENT, SAID WAX BEING PRESENT IN THE PASTE IN AN AMOUNT WITHIN THE RANGE OF 1 TO 10 PERCENT BY WEIGHT OF THE CARBIDE, AND SAID HYDROCARBON BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF 5 TO 20 PERCENT BY VOLUME OF THE CARBIDE, MOLDING THE PASTE INTO A PRODUCT OF THE DESIRED SHAPE, DRYING THE MOLDED PRODUCT, HEATING TO A TEMPERATURE WITHIN THE RANGE OF 250-300*C. AND THEN HEATING MORE SLOWLY AT A RATE OF 40*-60*C. PER HOUR TO A TEMPERATURE OF 1350-1600*C., AND THEREAFTER HEATING THE PRODUCT TO A TEMPERATURE WITHIN THE RANGE OF 1600-2300*C.
Claim 4
Independent Claim
139 words
THE METHOD OF PRODUCING FINISHED AND SEMI-FINISHED PRODUCTS OF MOLYBDENUM CARBDE COMPRISING THE STEPS OF PROVIDING THE CARBIDE IN FINELY DIVIDED FROM, MIXING THE CARBIDE TO FORM A PASTE CONSISTING ESSENTIALLY OF THE CARBIDE, A WAX AND A SATURATED ORGANIC HYDROCARBON SOLVENT, SAID WAX BEING PRESENT IN THE PASTE IN AN AMOUNT WITHIN THE RANGE OF 1 TO 10 PERCENT BY WEIGHT OF THE CARBIDE, AND SAID HYDROCARBON BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF 5 TO 20 PERCENT BY VOLUME OF THE CARBIDE, MOLDING THE PASTE INTO A PRODUCT OF THE DESIRED SHAPE, DRYING THE MOLDED PRODUCT, HEATING TO A TEMPERATURE WITHIN THE RANGE OF 250-300*C. AND THEN HEATING MORE SLOWLY AT A RATE OF 40*-60*C. PER HOUR TO A TEMPERATURE OF 1350-1600*C., AND THEREAFTER HEATING THE PRODUCT TO A TEMPERATURE WITHIN THE RANGE OF 1600-2300*C.
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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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |