US3194696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyanate baths
Assignee: Evonik Operations GmbH
•
Filing: 1963-06-11
•
Granted: 1965-07-13
•
Expires: 1983-06-11
Abstract
No abstract record available.
Inventors
- 👤 Muller Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:37
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/40; C23C8/52; C23C8/54; C23C8/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A FUSED BATH FOR INCREASING THE HARDNESS OF STEEL CONSISTING OF 3 TO 30% OF ALKALI METAL CYANATE AND THE REMAINDER AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL CHLORIDES, CARBONATES AND OXIDES.
Claim 2
Dependent Claim
41 words
A FUSED BATH FOR INCREASING THE HARDNESS OF STEEL CONSISTING OF 3 TO 30% OF ALKALI METAL CYANATE AND THE REMAINDER AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALINE EARTH METAL CHLORIDES, CARBONATES AND OXIDES.
References Cited (Backward Citations)
US2007136A
Cited
US2927875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |