Patent US2217022A successfully refreshed from Google Patents.
US2217022A
Expired / Lapsed
US
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Solid color pattern knitting machine
Assignee: Hemphill Co
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Filing: 1937-10-26
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Granted: 1940-10-08
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Expires: 1957-10-26
Abstract
No abstract record available.
Inventors
- 👤 Robert H Lawson
- 👤 Isaac H C Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:58
CPC Classifications
D; D04; D04B; D04B9/00; D04B9/26; D04B9/28; D04B9/36; D04B1/00; D04B1/10; D04B1/12; D04B1/126; D04B1/22; D04B1/24; D04B1/26; D04B15/00; D04B15/66; D04B15/68; D04B15/74
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-10-08 | 1944-04-08 | 1944-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-08 | 1948-04-08 | 1948-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-08 | 1952-04-08 | 1952-10-08 | $7700.00 | Window Closed / Lapsed |