US2567671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sensitive adhesive tape
Assignee: 3M Co
•
Filing: 1949-10-10
•
Granted: 1951-09-11
•
Expires: 1969-10-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Joesting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:09
CPC Classifications
C; C09; C09J; C09J121/00; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/38; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2857; Y10T428/2878; Y10T428/2883
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
91 words
NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE TAPE COMPRISING A FLEXIBLE BACKING AND A FIRMLY ADHERENTLY BONDED COATING THEREON OF AN ADHESIVE CONSISTING ESSENTIALLY OF A BLEND OF ABOUT 25-75 PARTS OF NATURAL RUBBER, CORRESPONDINGLY ABOUT 75-25 PARTS OF BUTADIENESTYRENE SYNTHETIC RUBBER, AND, BASED ON 100 PARTS OF THE COMBINED RUBBERS, ABOUT 40-90 PARTS OF A THERMOPLASTIC TERPENE RESIN OF ZERO ACID NUMBER AND HAVING A MELTING POINT AT LEAST ABOUT 80* C., THE PROPORTIONS OF THE ABOVE THREE COMPONENTS BEING SUBSTANTIALLY WITHIN THE RANGE INDICATED BY THE SHADED AREA OF THE DRAWING.
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) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |