US3472655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sinter products for nitrating steel
Assignee: Lonza Werke Elektrochemische Fabriken GmbH
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Filing: 1967-06-30
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Granted: 1969-10-14
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Expires: 1987-06-30
Abstract
No abstract record available.
Inventors
- 👤 Alfons Fuchs
- 👤 Albert Babel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:35
CPC Classifications
C; C22; C22C; C22C33/00; C22C33/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3149962A
Cited
US3340052A
Cited
US3182102A
Cited
US3350242A
Cited
US3389990A
Cited
US3337336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |