US2978932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forming press
Assignee: Individual
•
Filing: 1957-11-04
•
Granted: 1961-04-11
•
Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry D Frueauff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:03
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1884708A
Cited
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US2174970A
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US2225345A
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US2340360A
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US2298887A
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US2335149A
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US2597153A
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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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |