US2677319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming a valve in a bag and applying a supplemental sleeve-forming sheet thereto
Assignee: Potdevin Machine Co
•
Filing: 1950-09-23
•
Granted: 1954-05-04
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Expires: 1970-09-23
Abstract
No abstract record available.
Inventors
- 👤 Potdevin Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:42
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)
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US2559873A
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US2442431A
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US2550155A
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US2643588A
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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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |