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Patent US2492711A successfully refreshed from Google Patents.
US2492711A
Expired / Lapsed
US
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Tuft forming sewing machine
Assignee: Individual
•
Filing: 1945-06-26
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Granted: 1949-12-27
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Expires: 1965-06-26
Abstract
No abstract record available.
Inventors
- 👤 Charles L Pickworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:32
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US434996A
Cited
US1344284A
Cited
US1433872A
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US1984331A
Cited
US2308438A
Cited
US2335487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-26 | 1953-06-27 | 1953-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-26 | 1957-06-27 | 1957-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-26 | 1961-06-27 | 1961-12-27 | $7700.00 | Window Closed / Lapsed |