Patent US2677319A successfully refreshed from Google Patents.
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
•
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 07:56
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE23486E
Cited
US1734362A
Cited
US1650895A
Cited
US1657577A
Cited
US1840232A
Cited
US1723165A
Cited
US1926241A
Cited
US2205633A
Cited
US2559873A
Cited
US2387274A
Cited
US2442431A
Cited
US2550155A
Cited
US2643588A
Cited
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 |