Patent EP0435429A1 successfully refreshed from Google Patents.
Patent US3535132A successfully refreshed from Google Patents.
US3535132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium carbide molten metal barrier and method of production
Assignee: United States Atomic Energy Commission
•
Filing: 1967-12-15
•
Granted: 1970-10-20
•
Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Lunde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:28
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B35/515; C04B35/56
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |