Patent US3228274A successfully refreshed from Google Patents.
US3228274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Size reduction of sheet material
Assignee: Individual
•
Filing: 1962-08-17
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Granted: 1966-01-11
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Expires: 1982-08-17
Abstract
No abstract record available.
Inventors
- 👤 Cagen George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:01
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/06; D21B1/08; D21B1/10; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/64; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2066; Y10T83/207; Y10T83/222; Y10T83/485; Y10T83/494; Y10T83/505; Y10T83/929; Y10T83/9372; Y10T83/9394
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US864552A
Cited
US1542872A
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US1874902A
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US2335515A
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US2635693A
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US2529750A
Cited
US2768689A
Cited
US2846879A
Cited
US2798550A
Cited
US2812815A
Cited
US2978942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |