Patent US3397826A successfully refreshed from Google Patents.
US3397826A
Expired / Lapsed
US
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Method of drawing formed material from a plurality of sources
Assignee: Alstom Power Inc
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Filing: 1965-10-23
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Granted: 1968-08-20
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Wilbur J Hawley
- 👤 Merrick Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:01
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/18; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0476; Y10T83/647; Y10T83/664; Y10T83/6641; Y10T83/889; Y10T83/896; Y10T83/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US493860A
Cited
US3123905A
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US1119180A
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US1646989A
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US2247766A
Cited
US2527911A
Cited
US2837331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |