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Patent US2580060A successfully refreshed from Google Patents.
US2580060A
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US
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Method and means for packaging sheet material
Assignee: Zimmerman Packing Co
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Filing: 1949-03-18
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Granted: 1951-12-25
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Expires: 1969-03-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:52
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/04; B65D75/06; B65D75/10; B65D85/00; B65D85/67; B65D85/671; B65D85/672
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |