Patent US2693741A successfully refreshed from Google Patents.
US2693741A
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Machine and method for sleeving valved bags
Assignee: HEST MACHINES Inc
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Filing: 1948-11-22
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Granted: 1954-11-09
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Expires: 1968-11-22
Abstract
No abstract record available.
Inventors
- 👤 Matz A Speicher
- 👤 Charles I Eshleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:57
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B70/84; B31B70/855; B31B2160/00; B31B2160/10; B31B70/85
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US523331A
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US1175257A
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US1723164A
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US1830439A
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US2296146A
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US2437693A
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US2559873A
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US2387274A
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US2483860A
Cited
US2442431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |