Patent US2778066A successfully refreshed from Google Patents.
US2778066A
Expired / Lapsed
US
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Top roll for drafting frames
Assignee: Morgan Advanced Materials PLC
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Filing: 1952-07-28
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Granted: 1957-01-22
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Expires: 1972-07-28
Abstract
No abstract record available.
Inventors
- 👤 Walmsley John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:45
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; F; F16; F16C; F16C3/00; F16C3/02; F16C3/023; D01H2700/00; D01H2700/245; F16C2340/00; F16C2340/18; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US546639A
Cited
GB214291A
Cited
US2228406A
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US2275538A
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US2256193A
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US2246092A
Cited
US2591612A
Cited
US2623245A
Cited
US2671934A
Cited
US2648573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |