US2238796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overedge sewing machine
Assignee: Singer Co
•
Filing: 1939-06-10
•
Granted: 1941-04-15
•
Expires: 1959-06-10
Abstract
No abstract record available.
Inventors
- 👤 Knaus Nicholaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:35
CPC Classifications
D; D05; D05B; D05B1/00; D05B1/08; D05B1/18; D05B1/20; D05B27/00; D05B27/02; D05B29/00; D05B29/06; D05B57/00; D05B57/06; D05B73/00; D05B73/04; D05B73/12; D05B85/00; D05B85/06
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) | 1944-04-14 | 1944-10-14 | 1945-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-14 | 1948-10-14 | 1949-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-14 | 1952-10-14 | 1953-04-15 | $7700.00 | Window Closed / Lapsed |