US3003885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium diboride article
Assignee: Union Carbide Corp
•
Filing: 1960-02-01
•
Granted: 1961-10-10
•
Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Victor Mandorf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:37
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/5805; C04B35/58064; C04B35/58071; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63448; C04B35/63488; C04B35/64; C04B35/645; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/38; C04B2235/3804; C04B2235/3813; C04B2235/3852; C04B2235/386; C04B2235/3886; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5436; C04B2235/5463; C04B2235/5481; C04B2235/60; C04B2235/604; C04B2235/70; C04B2235/74; C04B2235/77; C04B2235/80; C04B2235/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD OF HOT PRESSING FINELY DIVIDED TITANIUM DIBORIDE COMPRISING MIXING TITANIUM DIBORIDE HAVING AN AVERAGE PARTICLE SIZE OF AROUND 7 MICRONS WITH A FUGITIVE BINDER AND WITH FROM ABOUT 3 TO ABOUT 10 PERCENT BY WEIGHT OF A REFRACTORY NITRIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, BORON, TITANIUM, HAFNIUM, VANADIUM, NIOBIUM, CHROMIUM, TANTALUM, MOLYBDENUM AND TUNGSTEN, COLD PRESSING INTO SHAPE THE RESULTING MIXTURE UNDER A PRESSURE RANGING FROM ABOUT 10 TO ABOUT 20 TONS PER SQUARE INCH, AND THEN HOT PRESSING THE FORMED SHAPE AT A TEMPERATURE OF ABOUT 2000 TO 2300*C. UNDER A PRESSURE OF ABOUT ONE TON PER SQUARE INCH.
Claim 2
Independent Claim
107 words
A METHOD OF HOT PRESSING FINELY DIVIDED TITANIUM DIBORIDE COMPRISING MIXING TITANIUM DIBORIDE HAVING AN AVERAGE PARTICLE SIZE OF AROUND 7 MICRONS WITH A FUGITIVE BINDER AND WITH FROM ABOUT 3 TO ABOUT 10 PERCENT BY WEIGHT OF A REFRACTORY NITRIDE OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, BORON, TITANIUM, HAFNIUM, VANADIUM, NIOBIUM, CHROMIUM, TANTALUM, MOLYBDENUM AND TUNGSTEN, COLD PRESSING INTO SHAPE THE RESULTING MIXTURE UNDER A PRESSURE RANGING FROM ABOUT 10 TO ABOUT 20 TONS PER SQUARE INCH, AND THEN HOT PRESSING THE FORMED SHAPE AT A TEMPERATURE OF ABOUT 2000 TO 2300*C. UNDER A PRESSURE OF ABOUT ONE TON PER SQUARE INCH.
References Cited (Backward Citations)
US2888355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |