Patent US3532491A successfully refreshed from Google Patents.
US3532491A
Expired / Lapsed
US
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Maraging steel suitable for heavy section applications
Assignee: Huntington Alloys Corp
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Filing: 1969-05-14
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Granted: 1970-10-06
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Expires: 1989-05-14
Abstract
No abstract record available.
Inventors
- 👤 Stephen Floreen
- 👤 Charles Joseph Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:53
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/08; C22C38/004; C22C38/06; C22C38/10; C22C38/105; C22C38/12; C22C38/14; C22C38/18; C22C38/40; C22C38/44; C22C38/50; C22C38/52
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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |