US3724018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swab with foam plastic wiping tip
Assignee: Individual
•
Filing: 1971-08-04
•
Granted: 1973-04-03
•
Expires: 1991-08-04
Abstract
Abstract A swab having a reticulated plastic foam wiping tip formed by wrapping a foam strip in a unique way about one end of a handle. The wiping tip is characterized by a multiplicity of interconnecting cellular pores which enter the external surfaces and extend throughout the interior of the tip, whereby the swab is effective to remove foreign material from a surface by moving the tip across the surface in such a way that the material enters and becomes entrapped within the pores of the tip and to apply to a surface material contained within the pores by moving the tip across the surface while pressing the tip against the surface.
Inventors
- 👤 A Sills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:35
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/42; A47L13/46; A61; A61F; A61F13/00; A61F13/15; A61F13/38; A61M; A61M35/00; A61M35/003; A61M35/006; B; B08; B08B; B08B1/00; B08B1/10; B08B1/14; B08B1/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A swab comprising: a stick-like handle, an elastic foam plastic strip applied to said handle by winding said strip about said handle while periodically changing the angle of said handle relative to said strip in such a way as to form a bulbular end on said wiping tip completely enclosing the end of said handle, means securing the strip on the handle and said strip comprising a single layer reticulated plastic foam material having bare side surfaces and characterized by a multiplicity of interconnecting cellular pores which enter the outer surface and extend throughout the interior of and open through the inner surface of the strip, whereby said strip is stretched endwise to enlarge said pores during application of the strip to said handle, such that said tip is effective to remove particulate matter and other foreign material from a surface being wiped by entrapment of such material within the enlarged pores of said wiping tip.
Claim 2
Dependent Claim
156 words
A swab comprising: a stick-like handle, an elastic foam plastic strip applied to said handle by winding said strip about said handle while periodically changing the angle of said handle relative to said strip in such a way as to form a bulbular end on said wiping tip completely enclosing the end of said handle, means securing the strip on the handle and said strip comprising a single layer reticulated plastic foam material having bare side surfaces and characterized by a multiplicity of interconnecting cellular pores which enter the outer surface and extend throughout the interior of and open through the inner surface of the strip, whereby said strip is stretched endwise to enlarge said pores during application of the strip to said handle, such that said tip is effective to remove particulate matter and other foreign material from a surface being wiped by entrapment of such material within the enlarged pores of said wiping tip.
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |