Patent US2435560A successfully refreshed from Google Patents.
US2435560A
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Bag making machine and method
Assignee: ES&A Robinson Canada Ltd
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Filing: 1944-01-29
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Granted: 1948-02-03
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Expires: 1964-01-29
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Richens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:21
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/26; B31B70/262; B31B2155/00; B31B2155/001; B31B2155/0014; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2147757A
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US2126908A
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US2157054A
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US2191497A
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US2248471A
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US2347439A
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US2265075A
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US2301771A
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US2344720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |