US3215525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deoxidation alloy
Assignee: Vanadium Corp of America
•
Filing: 1962-10-12
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Granted: 1965-11-02
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Aloise F Sprankle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:28
CPC Classifications
C; C21; C21C; C21C7/00; C21C7/04; C21C7/06; C22; C22C; C22C28/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3000731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |