Patent US227442A successfully refreshed from Google Patents.
US3545336A
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Apparatus for forming slits in an elongated linearly moving tube
Assignee: Individual
•
Filing: 1969-04-08
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Granted: 1970-12-08
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Expires: 1989-04-08
Abstract
No abstract record available.
Inventors
- 👤 Charley Savko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:49
CPC Classifications
B; B27; B27B; B27B25/00; B27B25/02; B21; B21C; B21C37/00; B21C37/06; B21C37/15; B21C37/156; B21C37/157; B21D; B21D28/00; B21D28/24; B21D28/28; B23; B23C; B23C3/00; B23C3/28; B23D; B23D31/00; B23D31/02; B23D45/00; B23D45/12; B23D45/122; B23D47/00; B23D47/08; B23Q; B23Q35/00; B23Q35/02; B24; B24B; B24B19/00; B24B19/02; B26; B26F; B26F1/00; B26F1/0015; B26F1/0061; B26F1/0076; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/305208; Y10T409/306664; Y10T409/307448; Y10T409/307784; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/485; Y10T83/489; Y10T83/647; Y10T83/6572; Y10T83/6576; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/7776; Y10T83/778
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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |