US2587422A
Expired / Lapsed
US
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Machine for the manufacture of paper bags
Assignee: ES&A Robinson Canada Ltd
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Filing: 1949-05-21
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Granted: 1952-02-26
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Expires: 1969-05-21
Abstract
No abstract record available.
Inventors
- 👤 Wills Stanley Charle Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:15
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/431; B29C66/4312; B29C66/49; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/82265; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C66/8351; B29C66/83541; B29C66/83543; B29C66/84; B29C66/851; B29C66/8511; B31; B31B; B31B70/00; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91431; B29C66/9161; B29C66/91641; B29K; B29K2711/00; B29K2711/12; B29K2711/126; B31B2155/00; B31B2155/001; B31B2155/0012; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |