US2714562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing wrapping material
Assignee: Munising Paper Co
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Filing: 1953-10-09
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Granted: 1955-08-02
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Expires: 1973-10-09
Abstract
No abstract record available.
Inventors
- 👤 John F Hechtman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:54
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/42; B65D65/40; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699; Y10T428/31707; Y10T428/31801; Y10T428/31826; Y10T428/3183; Y10T428/31841; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31909; Y10T428/31913; Y10T428/31917
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
AS A NEW ARTICLE OF MANUFACTURE, A SHEET OF SELFSEALING WRAPPING MATERIAL ADAPTED COMPLETELY TO ENCASE AN ARTICLE AND THEREBY SEAL THE SAME, SAID ARTICLE COMPRISING A THIN, FLEXIBLE SHEET OF A NON-POROUS MATERIAL HAVING ON ONE SURFACE THEREOF AN EXPOSED FLEXIBLE FILM OF A COHESIVE, SUBSTANTIALLY NON-ADHESIVE MATERIAL COMPRISING A MIXTURE OF NATURAL RUBBER AND A COPOLYMER OF FROM 50 TO 80% BY WEIGHT OF A BUTADIENE-1,3 HYDROCARBON AND FROM 20 TO 50% BY WEIGHT OF AN ACRYLIC NITRILE HAVING A MOLECULAR WEIGHT BELOW 100,000, IN THE PROPORTION OF 10 TO 60% OF NATURAL RUBBER AND 90 TO 40% OF THE COPOLYMER, ON A DRY WEIGHT BASIS, AND HAVING ON THE OTHER SURFACE THEREOF AN EXPOSED FLEXIBLE WAX FILM.
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) | 1958-08-01 | 1959-01-31 | 1959-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-01 | 1963-01-31 | 1963-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-01 | 1967-01-31 | 1967-08-02 | $7700.00 | Window Closed / Lapsed |