Patent US3546990A successfully refreshed from Google Patents.
US3546990A
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Method and apparatus for die cutting blanks from stacks of sheet material
Assignee: Frey Wiederkehr & Cie AG Brief
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Filing: 1968-05-23
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Granted: 1970-12-15
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Expires: 1988-05-23
Abstract
No abstract record available.
Inventors
- 👤 Willi A Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:39
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/40; B26D; B26D7/00; B26D7/01; B26D7/015; B26D7/18; B26D7/1818; B26D2007/1881; B26F2210/00; B26F2210/02; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0448; Y10T83/0467; Y10T83/0524; Y10T83/0577; Y10T83/06; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/2098; Y10T83/2122; Y10T83/2129; Y10T83/2183; Y10T83/2187; Y10T83/22; Y10T83/2205; Y10T83/444; Y10T83/445
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |