US2854736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boron nitride-metal silicide bodies and the manufacture thereof
Assignee: Unifrax I LLC
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Filing: 1955-01-20
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Granted: 1958-10-07
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Expires: 1975-01-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:11
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B35/515; C04B35/58; C04B35/58085; C04B35/58092; C04B35/583; C22; C22C; C22C1/00; C22C1/04; C22C1/05; C22C1/051; C22C29/00; C22C29/16; C22C29/18; B; B22; B22F; B22F2998/00; B22F2998/10; Y; Y10; Y10S; Y10S148/00; Y10S148/148; Y10S264/00; Y10S264/36
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
51 words
A SINTERED, SHAPED BODY CONSISTING ESSENTIALLY OF BORON NITRIDE, REFRACTORY TRANSITION METAL SILICIDE AND UP TO 30% BY WEIGHT OF AN AUXILIARY METAL SELECTED FROM THE GROUP CONSISTING OF COBALT, NICKEL AND MIXTURES THEREOF, SAID BODY CONTAINING A MINIMUM OF ABOUT 1% EACH OF BORON NITRIDE AND REFRACTORY TRANSITION METAL SILICIDE.
References Cited (Backward Citations)
US2116399A
Cited
US2116400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |