Patent US5437604A successfully refreshed from Google Patents.
Patent US3209984A successfully refreshed from Google Patents.
US3209984A
Expired / Lapsed
US
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Valve bag
Assignee: CIE IND DES TEXTILES ET EMBALL
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Filing: 1964-03-31
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Granted: 1965-10-05
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Expires: 1984-03-31
Abstract
No abstract record available.
Inventors
- 👤 Pelce Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:57
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; B65D31/147; Y; Y10; Y10S; Y10S383/00; Y10S383/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
IN A VALVEW BAG COMPRISING A SEPARATE PIECE ADDED EXTERNALLY ON A WALL OF THE BAG AND WELDED THERETO ALONG THREE SIDES SO AS TO FORM WITH THIS WALL AN EXTERNAL FLAT POCKET, AND A SLIT IN SAID WALL INSIDE SAID POCKET AND NEAR THE BOTTOM THEREOF, SAID FLAT POCKET WITH SAID SLIT CONSTITUTING A VALVE FOR THE INTRODUCTION OF THE MATERIALS TO BE BAGGED AND THE CLOSURE OF THE FILLED BAG, THE IMPROVEMENTS CONSISTING OF AN EXTENSION OF SAID PIECE, NOT WELDED TO SAID BAG WALL, ON THE INLET SIDE OF SAID POCKET, AND OF A SECOND PIECE INTERPOSED BETWEEN SAID BAG WALL AND SAID FIRST PIECE INCLUDING SAID EXTENSION THEREOF UP TO THE TOP EDGE OF SAID EXTENSION, WELDED LATERALLY TO SAID FIRST PIECE AND SAID EXTENSION THEREOF, WELDED LATERALLY TO SAID BAG WALL ALONG THE SAME LENGTH AS SAID FIRST PIECE AND WELDED ALONG ITS LOWER EDGE TO SAID BAG WALL ABOVE SAID SLIT, THE IMPROVED VALVE BEING THUS CONSTITUTED BY A SLEEVE OF WHICH THE LOWER PORTION ADJACENT TO SAID SLIT IS WELDED
Claim 2
Dependent Claim
177 words
IN A VALVEW BAG COMPRISING A SEPARATE PIECE ADDED EXTERNALLY ON A WALL OF THE BAG AND WELDED THERETO ALONG THREE SIDES SO AS TO FORM WITH THIS WALL AN EXTERNAL FLAT POCKET, AND A SLIT IN SAID WALL INSIDE SAID POCKET AND NEAR THE BOTTOM THEREOF, SAID FLAT POCKET WITH SAID SLIT CONSTITUTING A VALVE FOR THE INTRODUCTION OF THE MATERIALS TO BE BAGGED AND THE CLOSURE OF THE FILLED BAG, THE IMPROVEMENTS CONSISTING OF AN EXTENSION OF SAID PIECE, NOT WELDED TO SAID BAG WALL, ON THE INLET SIDE OF SAID POCKET, AND OF A SECOND PIECE INTERPOSED BETWEEN SAID BAG WALL AND SAID FIRST PIECE INCLUDING SAID EXTENSION THEREOF UP TO THE TOP EDGE OF SAID EXTENSION, WELDED LATERALLY TO SAID FIRST PIECE AND SAID EXTENSION THEREOF, WELDED LATERALLY TO SAID BAG WALL ALONG THE SAME LENGTH AS SAID FIRST PIECE AND WELDED ALONG ITS LOWER EDGE TO SAID BAG WALL ABOVE SAID SLIT, THE IMPROVED VALVE BEING THUS CONSTITUTED BY A SLEEVE OF WHICH THE LOWER PORTION ADJACENT TO SAID SLIT IS WELDED
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |