US3413113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of melting metal
Assignee: Rheinstahl Huettenwerke AG
•
Filing: 1965-07-21
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Granted: 1968-11-26
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Hanns Arnt Vogels
- 👤 Manfred Wahlster
- 👤 Borut Marincek
- 👤 Kurt Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:35
CPC Classifications
C; C21; C21C; C21C5/00; C21C5/28; C21C5/30; C21C5/35; C21B; C21B13/00; C21B13/12; Y; Y10; Y10S; Y10S266/00; Y10S266/90
Claims Analysis
Total Claims: 0
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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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |