US3547625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steel containing chromium molybdenum and nickel
Assignee: Huntington Alloys Corp
•
Filing: 1967-07-27
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Granted: 1970-12-15
•
Expires: 1987-07-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence George Bieber
- 👤 Roger Allen Covert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:11
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/08; F28F21/081; F28F21/082; C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/055; C22C38/00; C22C38/18; C22C38/40; C22C38/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2398702A
Cited
US2403128A
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US2570193A
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US2809127A
Cited
US3048485A
Cited
US3094414A
Cited
US3107167A
Cited
US3183084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |