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US3378366A
Expired / Lapsed
US
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Method of inspection and control of the reaction performance during the oxygen blowing process
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1965-06-15
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Granted: 1968-04-16
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Expires: 1985-06-15
Abstract
No abstract record available.
Inventors
- 👤 Borowski Kurt
- 👤 Maatsch Jurgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:12
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; C21C5/32; C21C5/42; C21C5/46; C21C5/4673
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |