US2659543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Winding core
Assignee: Sonoco Products Co
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Filing: 1950-09-21
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Granted: 1953-11-17
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Expires: 1970-09-21
Abstract
No abstract record available.
Inventors
- 👤 Guyer Frank Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:07
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/10; B65H2701/00; B65H2701/30; B65H2701/37; B65H2701/377; B65H2701/50; B65H2701/53; B65H2701/532
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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |