US2505330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewing machine lubrication
Assignee: Singer Co
•
Filing: 1945-09-11
•
Granted: 1950-04-25
•
Expires: 1965-09-11
Abstract
No abstract record available.
Inventors
- 👤 John D Karle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:11
CPC Classifications
D; D05; D05B; D05B71/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1135601A
Cited
US1221254A
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FR500764A
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GB259222A
Cited
US1960512A
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US1998588A
Cited
US2120210A
Cited
US2206285A
Cited
US2128573A
Cited
US2267581A
Cited
US2323422A
Cited
US2332087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-24 | 1953-10-24 | 1954-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-24 | 1957-10-24 | 1958-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-24 | 1961-10-24 | 1962-04-25 | $7700.00 | Window Closed / Lapsed |