US2478181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous conduit and method and composition for same
Assignee: Sonoco Products Co
•
Filing: 1943-07-28
•
Granted: 1949-08-09
•
Expires: 1963-07-28
Abstract
No abstract record available.
Inventors
- 👤 Richard G Coker
- 👤 Jr Auburn Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/30; D21H27/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US459509A
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US1325611A
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GB260210A
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US1694399A
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US1990248A
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US2053811A
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US2121076A
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US2150148A
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US2084673A
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US2307848A
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US2296781A
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US2325168A
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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) | 1952-08-08 | 1953-02-07 | 1953-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-08 | 1957-02-07 | 1957-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-08 | 1961-02-07 | 1961-08-09 | $7700.00 | Window Closed / Lapsed |