US3740340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite insulators for use in hot hydrogen environments
Assignee: United States Atomic Energy Commission
•
Filing: 1971-03-03
•
Granted: 1973-06-19
•
Expires: 1991-03-03
Abstract
Abstract INSULATORS COMPRISING COMPOSITES OF THE COMPOSITION MC-M''O2 WHERE M AND M'' MAY BE TI, ZR, HF, V, NB, TA, TH, AND U, AND THE METAL CARBIDE CONTENT MAY READILY RANGE FROM APPROXIMATELY 25 TO 75 VOLUME PERCENT, HAVE LOW THERMAL CONDUCTIVITIES AND ADEQUATE STRUCTURAL PROPERTIES WHEN MAINTAINED AT TEMPERATURES AS HIGH AS 2300* C. FOR AS ALONG AS 16 HOURS IN A FLOWING HYDROGEN ENVIRONMENT. THE DESIGNATION MC-M''O2 IS A GENERAL ONE AND DOES NOT NECESSARILYIMPLY A STOICHIOMETRIC MONOCARBIDE AND/OR DIOXIDE.
Inventors
- 👤 R Riley
- 👤 J Taub
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B35/01; C04B35/48; C04B35/486; C04B35/488; C04B35/51; C04B35/515; C04B35/56; C04B35/5607; C04B35/5622
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |