US3295744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Top closure for bag
Assignee: Pillsbury Co
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Filing: 1965-03-29
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Granted: 1967-01-03
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Charles H Turpin
- 👤 Loren J Klitzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:23
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1691
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A FLEXIBLE SHEET BAG CONTAINING A FINELY DIVIDED SUBSTANCE HAVING EXCESS SIDEWALL MATERIAL EXTENDING ABOVE THE PLANE DEFINED BY THE TOP LEVEL OF SAID SUBSTANCE, SAID BAG COMPRISING: (A) A GUSSETTED AND FLATTENED COVER FLAP FORMED FROM EXCESS UPPER SIDEWALL MATERIAL, (B) SAID COVER FLAP HAVING AN ENDMOST PANEL FOLDED AGAINST ITSELF ON AN UPPER FOLD LINE PARALLEL TO THE PLANE OF THE BAG TOP, (C) DUST TIGHT SEALING MEANS DISPOSED AT THE MARGINAL EDGE OF SAID ENDMOST PANEL AND OVER THE ADJACENT SURFACE OF THE COVER FLAP, (D) SAID COVERFLAP FURTHER HAVING AN INNERMOST PANEL TOWARD WHICH SAID FOLDED ENDMOST PANEL IS AGAIN FOLDED ON AN OUTER FOLD LINE PARALLEL TO THE PLANE OF THE BAG TOP, (E) AND AN OUTER TAPE ADHESIVELY AFFIXED OVER SAID OUTER FOLD LINE AND AGAINST THE EXTERIOR SURFACE OF THE BAG SIDEWALL MATERIAL, WHEREBY SAID DUST TIGHT SEALING MEANS AND SAID UPPER FOLD LINE WILL BE IMMOBILIZED IN ITS FOLDED CONDITION.
Claim 2
Dependent Claim
158 words
A FLEXIBLE SHEET BAG CONTAINING A FINELY DIVIDED SUBSTANCE HAVING EXCESS SIDEWALL MATERIAL EXTENDING ABOVE THE PLANE DEFINED BY THE TOP LEVEL OF SAID SUBSTANCE, SAID BAG COMPRISING: (A) A GUSSETTED AND FLATTENED COVER FLAP FORMED FROM EXCESS UPPER SIDEWALL MATERIAL, (B) SAID COVER FLAP HAVING AN ENDMOST PANEL FOLDED AGAINST ITSELF ON AN UPPER FOLD LINE PARALLEL TO THE PLANE OF THE BAG TOP, (C) DUST TIGHT SEALING MEANS DISPOSED AT THE MARGINAL EDGE OF SAID ENDMOST PANEL AND OVER THE ADJACENT SURFACE OF THE COVER FLAP, (D) SAID COVERFLAP FURTHER HAVING AN INNERMOST PANEL TOWARD WHICH SAID FOLDED ENDMOST PANEL IS AGAIN FOLDED ON AN OUTER FOLD LINE PARALLEL TO THE PLANE OF THE BAG TOP, (E) AND AN OUTER TAPE ADHESIVELY AFFIXED OVER SAID OUTER FOLD LINE AND AGAINST THE EXTERIOR SURFACE OF THE BAG SIDEWALL MATERIAL, WHEREBY SAID DUST TIGHT SEALING MEANS AND SAID UPPER FOLD LINE WILL BE IMMOBILIZED IN ITS FOLDED CONDITION.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |