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US2895603A
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US
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Use of cellular material in packaging articles
Assignee: Freeman Chemical Corp
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Filing: 1957-01-15
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Granted: 1959-07-21
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Expires: 1977-01-15
Abstract
No abstract record available.
Inventors
- 👤 Stephen E Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:55
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/107; B65D81/113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1489943A
Cited
US1988843A
Cited
US2638179A
Cited
US2780350A
Cited
GB732921A
Cited
US2785739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |