Patent US4564550A successfully refreshed from Google Patents.
US4564550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam sealing tape
Assignee: Irbit Research and Consulting AG
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Filing: 1985-02-28
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Granted: 1986-01-14
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Expires: 2005-02-28
Abstract
Abstract A foam sealing tape comprises a foam sealing tape layer and an interlayer strip rolled up together in a compressed form. At least one wide-side surface of the interlayer strip has elevations which press into the foam sealing tape layer.
Inventors
- 👤 Rolf Tschudin-Mahrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:36
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/68; E04B1/6812; C; C09; C09K; C09K3/00; C09K3/10; E04B1/74; E04B1/76; E04B1/7608; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24521; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/28; Y10T428/2839
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
40 words
A foam sealing tape comprising a foam sealing tape layer and an interlayer strip rolled up together in a compressed form, at least one wide-side surface of the interlayer strip has elevations which press into the foam sealing tape layer.
Claim 2
Dependent Claim
40 words
A foam sealing tape comprising a foam sealing tape layer and an interlayer strip rolled up together in a compressed form, at least one wide-side surface of the interlayer strip has elevations which press into the foam sealing tape layer.
Claim 3
Dependent Claim
19 words
The foam sealing tape according to claim 1, wherein said wide-side surface is formed with knobs constituting the elevations.
Claim 4
Dependent Claim
49 words
The foam sealing tape according to claim 1, wherein said wide-side surface of the interlayer strip with the elevations is made of plastic of high tensile strength and is essentially non-adhering, and a layer of pressure-sensitive adhesive is located between the interlayer strip and the foam sealing tape layer.
Claim 5
Dependent Claim
31 words
The foam sealing tape according to claim 3, wherein said layer of pressure-sensitive adhesive is located between said one wide-side surface of the interlayer strip and the foam sealing tape layer.
Claim 6
Dependent Claim
20 words
The foam sealing tape according to claim 1, wherein the elevations are projections which form depressions on their opposite side.
Claim 7
Dependent Claim
28 words
The foam sealing tape according to claim 5, wherein portions of said foam sealing tape layer of an adjacent winding interengage into said elevations, in said compressed form.
Claim 8
Dependent Claim
17 words
The foam sealing tape according to claim 5, wherein said foam sealing tape layer has delayed resilience.
Claim 9
Dependent Claim
28 words
The foam sealing tape according to claim 1, wherein portions of said foam sealing tape layer of an adjacent winding interengage into said elevations, in said compressed form.
Claim 10
Dependent Claim
25 words
The foam sealing tape according to claim 1, wherein said elevations are projections which project radially inwardly with respect to the rolled up compressed form.
Claim 11
Dependent Claim
14 words
The foam sealing tape according to claim 1, wherein said elevations are dome-shaped projections.
References Cited (Backward Citations)
US1960137A
Cited
GB825867A
Cited
US4021001A
Cited
US4147825A
Cited
FR2506318A1
Cited
US4484574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |