US2876894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive tapes and liners having low-adhesion coatings
Assignee: 3M Co
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Filing: 1955-08-01
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Granted: 1959-03-10
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Expires: 1975-08-01
Abstract
No abstract record available.
Inventors
- 👤 Carl A Dahlquist
- 👤 Arthur H Ahlbrecht
- 👤 George M Dixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:04
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J7/201; C09J2203/00; C09J2203/31; C09J2301/00; C09J2301/30; C09J2301/302; C09J2301/40; C09J2301/414; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; C09J2401/00; C09J2401/006; C09J2421/00; C09J2429/00; C09J2429/005; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/28; Y10T428/2839; Y10T428/2852; Y10T428/2857; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31891
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A PRESSURE-SENSITIVE ADHESIVE TAPE WOUND UPON ITSELF IN ROLL FORM, HAVING A FLEXIBLE BACKING COATED ON THE INNER FACE WITH A NORMALLY TACKY PRESSURE-SENITIVE ADHESIVE AND BACKSIZED WITH AN EXTREMELY THIN LOW-ADHESION COATING FORMED OF A SOLID COPOLYMER OF A VINYL MONOMER OF THE CLASS CONSISTING OF HIGHER-ALKYL VINYL ESTERS AND ETHERS AND A MALEIC MONOMER OF THE CLASS CONSISTING OF MALEIC ACID AND THE HALF-ESTERS AND HALF-AMIDES THEREOF, THE TERMINAL ALKYL GROUP OF SAID VINYL MONOMER HAVING A LENGTH OF AT LEAST 10 CARBON ATOMS.
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |