Patent US4070735A successfully refreshed from Google Patents.
US4070735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shower curtain fastener
Assignee: Individual
•
Filing: 1976-11-24
•
Granted: 1978-01-31
•
Expires: 1996-11-24
Abstract
Abstract A shower curtain fastener with a short flexible strip formed with integral suction cups on one face and ridges and depressions on an opposite face. The ridges and depressions define an expanded surface area to which an adhesive layer is applied. A cover sheet with a release coating is superimposed on the adhesive layer.
Inventors
- 👤 William Canaday
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
A; A47; A47K; A47K3/00; A47K3/28; A47K3/38; Y; Y10; Y10S; Y10S160/00; Y10S160/06; Y10T; Y10T24/00; Y10T24/10; Y10T24/33; Y10T428/00; Y10T428/14; Y10T428/1476
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
A fastener for temporarily holding a flexible shower curtain against the sidewall of a shower enclosure, said fastener comprising: (a) flexible strip formed with a plurality of integral suction cups on one face thereof; (b) a pressure sensitive adhesive layer superimposed on an opposite face of said flexible strip, said opposite face of said flexible strip formed with an expanded surface area to which said adhesive layer is attached; and (c) a cover sheet having a release coating superimposed on said adhesive layer, said release coating in contact with said adhesive layer.
Claim 2
Dependent Claim
92 words
A fastener for temporarily holding a flexible shower curtain against the sidewall of a shower enclosure, said fastener comprising: (a) flexible strip formed with a plurality of integral suction cups on one face thereof; (b) a pressure sensitive adhesive layer superimposed on an opposite face of said flexible strip, said opposite face of said flexible strip formed with an expanded surface area to which said adhesive layer is attached; and (c) a cover sheet having a release coating superimposed on said adhesive layer, said release coating in contact with said adhesive layer.
Claim 3
Dependent Claim
46 words
The fastener as claimed in claim 1 wherein each said suction cup includes a concave central portion which terminates in an outer ring, an upper flat face of each said ring disposed in a plane that is parallel to said one face of said flexible strip.
Claim 4
Dependent Claim
35 words
The fastener as claimed in claim 2 wherein each said suction cup is supported on a pedestal above said one face, said suction cups being equally spaced from the edges of the said flexible strip.
Claim 5
Dependent Claim
55 words
A fastener as claimed in claim 3 wherein said opposite face of said flexible strip is formed with a random pattern of ridges and depressions which forms a woven web like pattern in said adhesive layer, said ridges and depressions having a peak to valley height in the range of 25 microns to 100 microns.
Claim 6
Dependent Claim
57 words
A fastener as claimed in claim 4 wherein said flexible strip is formed with four suction cups on said one face and said expanded surface area is a random pattern of ridges and depressions on said opposite face, said ridges and depressions having a peak to valley height in the range of 25 microns to 100 microns.
Claim 7
Dependent Claim
43 words
The fastener as claimed in claim 5 wherein each said suction cup includes a concave central portion which terminates in an outer ring having a flat upper surface that is in a plane which is parallel to a plane of said flexible strip.
Claim 8
Dependent Claim
14 words
The fastener as claimed in claim 6 wherein said strip is composed of rubber.
Claim 9
Dependent Claim
18 words
The fastener as claimed in claim 7 wherein said cover sheet is a silicone impregnated paper release stratum.
Claim 10
Dependent Claim
42 words
The fastener as claimed in claim 8 wherein said adhesive layer has a tack which is more agressive with respect to said flexible strip and shower curtain than a gripping force of said suction cups against the sidewall of the shower enclosure.
Claim 11
Dependent Claim
31 words
The fastener as claimed in claim 9 wherein a pedestal supports each of said suction cups above said flexible strip, said pedestal, flexible strip and suction cups being an integral structure.
References Cited (Backward Citations)
US2227541A
Cited
US2303502A
Cited
US2608250A
Cited
US2642248A
Cited
US2840160A
Cited
US2975538A
Cited
US3456305A
Cited
US3685103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |