US2697084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesives comprising polyvinyl ether
Assignee: Permacel Tape Corp
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Filing: 1944-12-15
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Granted: 1954-12-14
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Expires: 1964-12-15
Abstract
No abstract record available.
Inventors
- 👤 Laszlo W Eger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:15
CPC Classifications
C; C09; C09J; C09J129/00; C09J129/10; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/38; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN ADHESIVE SHEET COMPRISING A BACKING AND, UNITED THERETO, A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE MASS, WHICH MASS IS MORE COHESIVE THAN ADHESIVE, AND WHEREIN: AT LEAST ABOUT 28.7 PER CENT BY WEIGHT OF SAID MASS BUT NOT MORE THAN ABOUT SEVENTY-FIVE PER CENT IS SOLID POLYMER OF VINYL ALKYL ETHER, SAID ALKYL GROUP HAVING FROM THREE TO FOUR CARBON ATOMS AND SAID POLYMER HAVING AN INTRINSIC VISCOSITY OF FROM ABOUT FOUR TO ABOUT FIFTEEN; AN AGE RESISTOR; AND AT LEAST ABOUT TWENTY PER CENT BUT NO MORE THAN ABOUT FIFTY PER CENT BY WEIGHT OF A COMPATIBLE TACKIFIER FOR SAID SOLID POLYMER.
Claim 2
Dependent Claim
103 words
AN ADHESIVE SHEET COMPRISING A BACKING AND, UNITED THERETO, A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE MASS, WHICH MASS IS MORE COHESIVE THAN ADHESIVE, AND WHEREIN: AT LEAST ABOUT 28.7 PER CENT BY WEIGHT OF SAID MASS BUT NOT MORE THAN ABOUT SEVENTY-FIVE PER CENT IS SOLID POLYMER OF VINYL ALKYL ETHER, SAID ALKYL GROUP HAVING FROM THREE TO FOUR CARBON ATOMS AND SAID POLYMER HAVING AN INTRINSIC VISCOSITY OF FROM ABOUT FOUR TO ABOUT FIFTEEN; AN AGE RESISTOR; AND AT LEAST ABOUT TWENTY PER CENT BUT NO MORE THAN ABOUT FIFTY PER CENT BY WEIGHT OF A COMPATIBLE TACKIFIER FOR SAID SOLID POLYMER.
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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) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |