Patent US2472820A successfully refreshed from Google Patents.
US2472820A
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Bonding machine
Assignee: Singer Co
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Filing: 1945-02-07
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Granted: 1949-06-14
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Expires: 1965-02-07
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Graham
- 👤 Church William Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:54
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/84; B29C66/845; B29C65/00; B29C65/02; B29C65/04; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/81; B29C66/816; B29C66/8161; B29C66/818; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8226; B29C66/82263; B29C66/82265; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/54; H05B6/56; H05B6/62; B29C66/70; B29C66/73; B29C66/731; B29C66/7314; B29C66/73143; B29C66/8221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2049292A
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US2170948A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |