US2810328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manufacturing paper bags
Assignee: Zellstoff und Papierfabrik Rosenthal GmbH
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Filing: 1954-12-24
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Granted: 1957-10-22
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Expires: 1974-12-24
Abstract
No abstract record available.
Inventors
- 👤 Seltmann Wilhelm
- 👤 Claus Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:04
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/26; B31B70/261; B31B2150/00; B31B2150/001; B31B2150/0014; B31B2160/00; B31B2160/10; B31B2160/20
Claims Analysis
Total Claims: 0
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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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |