Patent US2802528A successfully refreshed from Google Patents.
US2802528A
Expired / Lapsed
US
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Score-cut slitting mechanism
Assignee: John Dusenbery Co Inc
•
Filing: 1953-11-09
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Granted: 1957-08-13
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Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Elvin A Mastriani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:56
CPC Classifications
B; B26; B26D; B26D5/00; B26D5/02; B26D5/04; Y; Y10; Y10T; Y10T83/00; Y10T83/768; Y10T83/7751; Y10T83/7809; Y10T83/7851
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) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |