US3633780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging containers comprising a container body of a chlorinated plastic material
Assignee: Sobrefina SA
•
Filing: 1970-03-12
•
Granted: 1972-01-11
•
Expires: 1990-03-12
Abstract
Abstract A container composed at least in part of a chlorinated plastic having associated with it a calcium salt, such as calcium carbonate, which will react with the hydrochloric acid which is liberated when the plastic container is disposed of by burning or incineration and thus eliminate the corrosive affects of hydrochloric acid.
Inventors
- 👤 Anders Ruben Rausing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:43
CPC Classifications
B; B65; B65D; B65D25/00; B65D11/00; B65D11/02; Y; Y10; Y10S; Y10S220/00; Y10S220/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
37 words
A packaging container as claimed in claim 1, and further comprising a sleeve of relatively stiff carton material surrounding at least a portion of said container, and wherein said calcium carbonate is combined with said carton material.
Claim 2
Dependent Claim
28 words
A packaging container as claimed in claim 1, wherein at least a portion of the outside of said container is provided with a coating containing said calcium carbonate.
Claim 3
Dependent Claim
25 words
A packaging container as claimed in claim 3, wherein said coating comprises said calcium carbonate and an adhesive for securing said carbonate to said container.
Claim 4
Dependent Claim
37 words
A packaging container as claimed in claim 1, wherein the amount of calcium carbonate associated with the container is from about 35 to about 40 percent of the weight of the chlorinated plastic material in said container.
References Cited (Backward Citations)
US2926097A
Cited
US3325030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |