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Patent US2644988A successfully refreshed from Google Patents.
US2644988A
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US
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Means for supporting and loading the top rollers of textile drafting apparatus
Assignee: TMM Research Ltd
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Filing: 1950-10-19
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Granted: 1953-07-14
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Expires: 1970-10-19
Abstract
No abstract record available.
Inventors
- 👤 Haythornthwaite James Jackson
- 👤 Calvert James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:01
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/46; D01H5/50; D01H5/505
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2100139A
Cited
US2246474A
Cited
US2306849A
Cited
US2326979A
Cited
US2353338A
Cited
FR871451A
Cited
US2508964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |