US2544692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sensitive adhesive tape
Assignee: 3M Co
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Filing: 1949-04-20
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Granted: 1951-03-13
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Expires: 1969-04-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Kugler
- 👤 William E Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:39
CPC Classifications
B; B32; B32B; B32B27/00; A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/50; 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; C09J2301/30; C09J2301/302; C09J2301/40; C09J2301/414; C09J2433/00; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
PERMANENTLY TACKY AND PRESSURE-SENSITIVE ADHESIVE TAPE INCLUDING A BACKING AND A PRESSURE SENSITIVE ADHESIVE COATING ON AT LEAST ONE SURFACE THEREOF, SAID COATING COMPRISING A COPOLYMER OF 100 PARTS OF ISOBUTYL ACRYLATE AND 5-10 PARTS OF 2-ETHYL BUTYL FUMARATE.
Claim 2
Dependent Claim
39 words
PERMANENTLY TACKY AND PRESSURE-SENSITIVE ADHESIVE TAPE INCLUDING A BACKING AND A PRESSURE SENSITIVE ADHESIVE COATING ON AT LEAST ONE SURFACE THEREOF, SAID COATING COMPRISING A COPOLYMER OF 100 PARTS OF ISOBUTYL ACRYLATE AND 5-10 PARTS OF 2-ETHYL BUTYL FUMARATE.
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) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |