US3581884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-sensitive acoustic door tape
Assignee: 3M Co
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Filing: 1967-06-01
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Granted: 1971-06-01
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Expires: 1987-06-01
Abstract
Abstract A plastic-film pressure-sensitive adhesive acoustic door tape that can be easily cut with scissors and adhered inside a door frame to provide a springy V-shaped plastic sound barrier sealing strip adapted to only slightly increase the force required for closing or opening the door. Also useful as a weatherstrip for doors and windows. Supplied as a stable flattened creased tape wound in a roll, coated along one leg with a tacky pressuresensitive adhesive stripe that is covered by a dry-strippable liner, which can be unwound and easily folded to provide a stable springy V-shaped strip.
Inventors
- 👤 Donald B Caldwell
- 👤 Ralph C Edberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:15
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/23; E06B7/2305; E06B7/2307; E06B7/231; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/14; Y10T428/1452; Y10T428/24; Y10T428/24628; Y10T428/24802
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
38 words
An adhesive tape according to claim 1, wherein the tacky pressure-sensitive adhesive is a polyacrylate comprising a copolymer of an acrylate ester containing an average of 4-12 carbon atoms and a minor proportion by weight of acrylic acid.
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |