US2941676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling flexible walled bags
Assignee: Riegel Paper Corp
•
Filing: 1954-02-17
•
Granted: 1960-06-21
•
Expires: 1974-02-17
Abstract
No abstract record available.
Inventors
- 👤 Charles B Harker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:07
CPC Classifications
B; B65; B65B; B65B35/00; B65B35/30; B65B35/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US973422A
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US1985323A
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FR760501A
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US1991760A
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US2224975A
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US2307822A
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US2452020A
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US2649674A
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US2844917A
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |