Patent US2966872A successfully refreshed from Google Patents.
US2966872A
Expired / Lapsed
US
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Forming shaped hollow metal articles and equipment therefor
Assignee: Ryerson and Haynes Inc
•
Filing: 1953-11-02
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Granted: 1961-01-03
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Expires: 1973-11-02
Abstract
No abstract record available.
Inventors
- 👤 Karl C Schmocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/10; B21D22/105; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49792; Y10T29/49796; Y10T83/00; Y10T83/343; Y10T83/384
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |