US2636695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn spool, head and bearing elements therefor and method of making
Assignee: Shawmut Engineering Co
•
Filing: 1950-10-19
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Granted: 1953-04-28
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Expires: 1970-10-19
Abstract
No abstract record available.
Inventors
- 👤 Bixby Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:12
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; B65H2701/515; B65H2701/5152; B65H2701/51526; B65H2701/53; B65H2701/534
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US920611A
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US1554335A
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US1874188A
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US2020243A
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US1980586A
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US2081331A
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US2365772A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |