US2499268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit bobbin construction
Assignee: LESTERSHIRE SPOOL AND MANUFACTURING Co
•
Filing: 1949-05-10
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Granted: 1950-02-28
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Expires: 1969-05-10
Abstract
No abstract record available.
Inventors
- 👤 Earl G Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:12
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/512; B65H2701/5122; B65H2701/513; B65H2701/5136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1361802A
Cited
US2285732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |