Patent US2800780A successfully refreshed from Google Patents.
US2800780A
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US
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Yarn control means and method
Assignee: Patentex Inc
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Filing: 1954-12-21
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Granted: 1957-07-30
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Expires: 1974-12-21
Abstract
No abstract record available.
Inventors
- 👤 John L Chivington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:34
CPC Classifications
D; D04; D04B; D04B15/00; D04B15/38; B; B65; B65H; B65H59/00; B65H59/02; B65H59/06; B65H2701/00; B65H2701/30; B65H2701/31
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) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |