Patent US2581801A successfully refreshed from Google Patents.
US2581801A
Expired / Lapsed
US
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Multiply bag tubing machine
Assignee: ST Regis Paper Co
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Filing: 1948-06-18
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Granted: 1952-01-08
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Expires: 1968-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lienart Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:50
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/006; B31B2150/00; B31B2160/00; B31B2160/10; B31B2160/106; B31B2170/00; B31B2170/20; Y; Y10; Y10T; Y10T156/00; Y10T156/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1256286A
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US1571983A
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US1975121A
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US2078496A
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US2002814A
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US2013086A
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US2028145A
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US2054406A
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US2100519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |