Patent US2532011A successfully refreshed from Google Patents.
US2532011A
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Liners and adhesive tapes having low adhesion polyvinyl carbamate coatings
Assignee: 3M Co
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Filing: 1946-09-07
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Granted: 1950-11-28
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Expires: 1966-09-07
Abstract
No abstract record available.
Inventors
- 👤 Carl A Dahlquist
- 👤 James O Hendricks
- 👤 William E Sohl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:03
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/50; B; B32; B32B; B32B27/00; C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; C09J7/00; C09J7/20; C09J7/201; C09J7/21; C09J7/22; C09J7/30; C09J7/38; C09J2301/00; C09J2301/10; C09J2301/12; C09J2301/124; C09J2301/30; C09J2301/302; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; C09J2401/00; C09J2401/006; C09J2421/00; C09J2431/00; C09J2431/005; Y; Y10; Y10S; Y10S24/00; Y10S24/11; Y10T; Y10T428/00; Y10T428/14; Y10T428/28; Y10T428/2852; Y10T428/2857
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
50 words
IN COMBINATION WITH A PRESSURE-SENSITIVE ADHESIVE COATING, A REMOVABLE LINER HAVING A LOWADHESION SURFACE COATING IN REMOVABLE CONTACT WITH SAID ADHESIVE COATING, SAID LOW-ADHESION SURFACE COATING BEING FORMED OF A HYDROPHOBIC POLYVINYL CARBAMATE HAVING NITROGEN-LINKED HYDROCARBON SIDE CHAINS WHICH PROVIDE TERMINAL ALKYL GROUPS MORE THAN 5 CARBON ATOMS IN LENGTH.
References Cited (Backward Citations)
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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) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |