US2339653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
String-inserting mechanism for sewing machines
Assignee: Singer Co
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Filing: 1942-10-08
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Granted: 1944-01-18
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Expires: 1962-10-08
Abstract
No abstract record available.
Inventors
- 👤 Rudolph J Sailer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:26
CPC Classifications
D; D05; D05B; D05B23/00; D05B29/00; D05B29/06; D05D; D05D2303/00; D05D2303/08; D05D2305/00; D05D2305/02; D05D2305/04
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) | 1947-01-17 | 1947-07-19 | 1948-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-17 | 1951-07-19 | 1952-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-17 | 1955-07-19 | 1956-01-18 | $7700.00 | Window Closed / Lapsed |