Patent US2986810A successfully refreshed from Google Patents.
US2986810A
Expired / Lapsed
US
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Production of composite metal stock having internal channels
Assignee: Continental Can Co Inc
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Filing: 1959-02-11
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Granted: 1961-06-06
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Expires: 1979-02-11
Abstract
No abstract record available.
Inventors
- 👤 Robert M Brick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:54
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/14; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49391; Y10T29/4981
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |