Patent US2942944A successfully refreshed from Google Patents.
US2942944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing zirconium oxychloride
Assignee: Individual
•
Filing: 1958-11-26
•
Granted: 1960-06-28
•
Expires: 1978-11-26
Abstract
No abstract record available.
Inventors
- 👤 Harley A Wilhelm
- 👤 Maurice L Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:45
CPC Classifications
C; C01; C01G; C01G25/00; C01G25/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A PROCESS OF PREPARAING ZIRCONYL CHLORIDE, COMPRISING THE STEP OF MIXING SOLID ZIRCONYL CHLORIDE OCTAHYDRATE AND SOLID ZIRCONUIM TETRACHLORIDE, WHEREBY THE ZIRCONUIM TETRACHLORIDE IS CONVERTED TO ZIRCONYL CHLORIDE AND HYDROGEN CHLORIDE IS FORMED AND VOLATILIZED.
Claim 2
Dependent Claim
35 words
A PROCESS OF PREPARAING ZIRCONYL CHLORIDE, COMPRISING THE STEP OF MIXING SOLID ZIRCONYL CHLORIDE OCTAHYDRATE AND SOLID ZIRCONUIM TETRACHLORIDE, WHEREBY THE ZIRCONUIM TETRACHLORIDE IS CONVERTED TO ZIRCONYL CHLORIDE AND HYDROGEN CHLORIDE IS FORMED AND VOLATILIZED.
References Cited (Backward Citations)
GB480698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |