Patent US2535188A successfully refreshed from Google Patents.
US2535188A
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US
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Tubular winding core
Assignee: Individual
•
Filing: 1948-05-04
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Granted: 1950-12-26
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Expires: 1968-05-04
Abstract
No abstract record available.
Inventors
- 👤 Donald O Beckner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:17
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/185; B65H75/22; B65H75/2218; B65H75/2245; B65H75/2254; B65H75/2272; B65H75/26; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB283325A
Cited
US1862694A
Cited
US1924510A
Cited
GB434062A
Cited
US2163618A
Cited
FR848620A
Cited
US2225591A
Cited
US2282156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |