US3076592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture resistant multiwall bags
Assignee: Chase Bag Co
•
Filing: 1961-01-16
•
Granted: 1963-02-05
•
Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 John W Means
- 👤 Daniels Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:23
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/04; B65D75/00; B65D75/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A MULTIWALL BAG, COMPRISING: AT LEAST ONE OUTER LAMINA OF FLEXIBLE AND RELATIVELY INELASTIC PAPER, AT LEAST ONE INNER LAMINA OF RELATIVELY INELASTIC PAPER, AND AN INTERMEDIATE LAMINA OF SOMEWHAT ELASTIC MOISTURE RESISTANT PLASTIC SHEET MATERIAL, SAID LAMINAE BEING FREE OF ATTACHMENT TO EACH OTHER THROUGHOUT THE SIDE WALL AREAS THEREOF, SAID INTERMEDIATE LAMINA BEING ATTACHED TO THE INNER AND OUTER LAYERS BY MEANS OF SPACED SPOTS OF ADHESIVE ADJACENT THE FREE UPPER EDGES THEREOF PROVIDING RELATIVELY FREE MOVEMENT OF SUBSTANTIALLY ALL OF THE SURFACE OF SAID INTERMEDIATE LAMINA OVER THE SURFACES OF THE OTHER LAMINAE ENGAGING THE SAME TO MINIMIZE THE DANGER OF SIMULTANEOUS RUPTURING OF ALL OF SAID LAMINAE BY BAG DAMAGING FORCES.
Claim 2
Dependent Claim
115 words
A MULTIWALL BAG, COMPRISING: AT LEAST ONE OUTER LAMINA OF FLEXIBLE AND RELATIVELY INELASTIC PAPER, AT LEAST ONE INNER LAMINA OF RELATIVELY INELASTIC PAPER, AND AN INTERMEDIATE LAMINA OF SOMEWHAT ELASTIC MOISTURE RESISTANT PLASTIC SHEET MATERIAL, SAID LAMINAE BEING FREE OF ATTACHMENT TO EACH OTHER THROUGHOUT THE SIDE WALL AREAS THEREOF, SAID INTERMEDIATE LAMINA BEING ATTACHED TO THE INNER AND OUTER LAYERS BY MEANS OF SPACED SPOTS OF ADHESIVE ADJACENT THE FREE UPPER EDGES THEREOF PROVIDING RELATIVELY FREE MOVEMENT OF SUBSTANTIALLY ALL OF THE SURFACE OF SAID INTERMEDIATE LAMINA OVER THE SURFACES OF THE OTHER LAMINAE ENGAGING THE SAME TO MINIMIZE THE DANGER OF SIMULTANEOUS RUPTURING OF ALL OF SAID LAMINAE BY BAG DAMAGING FORCES.
References Cited (Backward Citations)
US1922867A
Cited
US2042594A
Cited
US2157392A
Cited
GB531463A
Cited
US2493349A
Cited
US2496796A
Cited
US2751140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |