US2498338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive tape
Assignee: Kendall Co
•
Filing: 1943-03-30
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Granted: 1950-02-21
•
Expires: 1963-03-30
Abstract
No abstract record available.
Inventors
- 👤 John B Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:27
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61F; A61F13/00; A61F13/02; A61F13/0246; A61F13/0253; C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/38; Y; Y10; Y10S; Y10S602/00; Y10S602/903; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
127 words
A PRESSURE SENSITIVE ADHESIVE TAPE COMPRISING A FLEXIBLE BACKING MATERIAL BEARING ON A SURFACE THEREOF A COATING OF A PRESSURE SENSITIVE ADHESIVE CONSISTING ESSENTIALLY OF A MODIFIED FACTICE COMPOSITION COMPRISING A MIXTURE OF A HALOGENFREE CURVED VEGETABLE OIL FACTICE AND A SOLID RUBBERY MATERIAL SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, RECLAIM RUBBER, ISOBUTYLENE POLYMER OF MOLECULAR WEIGHT 60,000-120,000, AND BUTADIENE-STYRENE COPOLYMER, A TACKIFYING RESIN AND A LIQUID PLASTICIZER, BOTH SAID TACKIFYING RESIN AND SAID LIQUID PLASTICIZER BEING COMPATIBLE WITH SAID MODIFIED FACTICE COMPOSITION, SAID COMPOSITION AND INGREDIENTS BEING PRESENT IN SUBSTANTIALLY THE FOLLOWING AMOUNTS BY WEIGHT OF SAID ADHESIVE: MODIFIED FACTICE COMPOSITION-FROM 14 TO 40%, OF WHICH THE FACTICE CONSTITUTES FROM 14 TO 25%, TACKIFYING RESIN-FROM 10 TO 50% AND LIQUID PLASTICIZER-FROM 5 TO 25%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-20 | 1953-08-22 | 1954-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-20 | 1957-08-22 | 1958-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-20 | 1961-08-22 | 1962-02-21 | $7700.00 | Window Closed / Lapsed |