US2427720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knitting machine
Assignee: Hemphill Co
•
Filing: 1945-02-27
•
Granted: 1947-09-23
•
Expires: 1965-02-27
Abstract
No abstract record available.
Inventors
- 👤 Fregeolle Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:40
CPC Classifications
D; D04; D04B; D04B9/00; D04B9/26; D04B9/28; D04B9/34; D04B15/00; D04B15/06; D04B9/42; D04B9/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1483904A
Cited
US1457903A
Cited
GB320392A
Cited
US2178911A
Cited
US2310070A
Cited
US2374857A
Cited
US2360668A
Cited
US2374532A
Cited
US2369781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-22 | 1951-03-24 | 1951-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-22 | 1955-03-24 | 1955-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-22 | 1959-03-24 | 1959-09-23 | $7700.00 | Window Closed / Lapsed |