US2855925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure sensitive adhesive article containing dextran
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1954-01-12
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Granted: 1958-10-14
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Expires: 1974-01-12
Abstract
No abstract record available.
Inventors
- 👤 Leo J Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:44
CPC Classifications
C; C09; C09J; C09J105/00; C09J105/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T442/00; Y10T442/20; Y10T442/2738; Y10T442/2754
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PRESURE-SENSITIVE ADHESIVE ARTICLE COMPRISING A BACKING AND A SURFACE ON THE BACKING CONSISTING ESSENTIALLY OF A PREDOMINANT AMOUNT OF A DEXTRAN AND A RELATIVELY MINOR AMOUNT OF A LIQUID HYDROSCOPIC AGENT COMPATIBLE WITH THE DEXTRAN AND SUFFICIENT TO MAINTAIN THE DEXTRAN IN A TACKY CONDITION FOR AN INDEFINITE PERIOD OF TIME UNDER NORMAL TEMPERATURE CONDITIONS AFTER DRYING OF THE SURFACE ON THE BACKING AT MODERATE TEMPERATURE TO REMOVE THE READILY AVAILABLE LIQUID FROM THE SURFACE SAID TACKY DEXTRAN FIXING THE ARTICLE FIRMLY ON A BASE WHEN THE ARTICLE IS PRESSED ON A BASE WITH THE TACKY DEXTRAN SURFACE IN CONTACT THEREWITH.
Claim 2
Dependent Claim
102 words
A PRESURE-SENSITIVE ADHESIVE ARTICLE COMPRISING A BACKING AND A SURFACE ON THE BACKING CONSISTING ESSENTIALLY OF A PREDOMINANT AMOUNT OF A DEXTRAN AND A RELATIVELY MINOR AMOUNT OF A LIQUID HYDROSCOPIC AGENT COMPATIBLE WITH THE DEXTRAN AND SUFFICIENT TO MAINTAIN THE DEXTRAN IN A TACKY CONDITION FOR AN INDEFINITE PERIOD OF TIME UNDER NORMAL TEMPERATURE CONDITIONS AFTER DRYING OF THE SURFACE ON THE BACKING AT MODERATE TEMPERATURE TO REMOVE THE READILY AVAILABLE LIQUID FROM THE SURFACE SAID TACKY DEXTRAN FIXING THE ARTICLE FIRMLY ON A BASE WHEN THE ARTICLE IS PRESSED ON A BASE WITH THE TACKY DEXTRAN SURFACE IN CONTACT THEREWITH.
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) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |