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US2970500A
Expired / Lapsed
US
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Forming machines
Assignee: Appel Process Ltd
•
Filing: 1958-09-10
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Granted: 1961-02-07
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Expires: 1978-09-10
Abstract
No abstract record available.
Inventors
- 👤 Gerhard H Appel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:03
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB721769A
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US647201A
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US952298A
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FR724515A
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US2247863A
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US2301093A
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DE934137C
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US2863342A
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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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |