US2244870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knitting machine
Assignee: Hemphill Co
•
Filing: 1938-08-17
•
Granted: 1941-06-10
•
Expires: 1958-08-17
Abstract
No abstract record available.
Inventors
- 👤 Isaac H C Green
- 👤 Pierre Eugene St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:35
CPC Classifications
D; D04; D04B; D04B9/00; D04B9/42; D04B9/46; D04B1/00; D04B1/22; D04B1/24; D04B1/26; D04B1/10; D04B1/102; D04B1/106; D04B9/26; D04B9/28; D04B9/30; D04B9/32; D04B9/54
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) | 1944-06-09 | 1944-12-09 | 1945-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-09 | 1948-12-09 | 1949-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-09 | 1952-12-09 | 1953-06-10 | $7700.00 | Window Closed / Lapsed |