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Patent US2596728A successfully refreshed from Google Patents.
US2596728A
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US
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Lubrication system for sewing machines
Assignee: Union Special Machine Co
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Filing: 1949-12-02
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Granted: 1952-05-13
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Expires: 1969-12-02
Abstract
No abstract record available.
Inventors
- 👤 Sauer George
- 👤 Clarence C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:13
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/14; F16N7/26; D; D05; D05B; D05B71/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1604078A
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US1825506A
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US2206285A
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US2243654A
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US2238797A
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US2345992A
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US2286441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |