Patent US3429164A successfully refreshed from Google Patents.
US3429164A
Expired / Lapsed
US
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Method of processing ferrous strip
Assignee: Armco Inc
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Filing: 1966-04-08
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Granted: 1969-02-25
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Expires: 1986-04-08
Abstract
No abstract record available.
Inventors
- 👤 Kasimir Oganowski
- 👤 Marvin B Pierson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:36
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/05; C; C21; C21D; C21D8/00; C21D8/02; C21D8/0221; C21D8/0242; B21B; B21B1/00; B21B1/22; B21B2001/228; B21B15/00; B21B2015/0071; C21D8/0231; C21D8/0236; C21D8/0247; C21D8/0252
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) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |