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Patent US2973731A successfully refreshed from Google Patents.
US2973731A
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Compound stitching device
Assignee: Man Sew Corp
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Filing: 1955-05-31
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Granted: 1961-03-07
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Expires: 1975-05-31
Abstract
No abstract record available.
Inventors
- 👤 Victor J Sigoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:52
CPC Classifications
D; D05; D05B; D05B1/00; D05B1/08; D05B1/18; D05B1/20; D05B29/00; D05B29/06; D05B73/00; D05B73/04; D05B73/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1750041A
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US1640201A
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US2158430A
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US2157373A
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US2254875A
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US2218796A
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US2267581A
Cited
US2730060A
Cited
US2834309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |