US3594928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper having areas dissolvable in water
Assignee: Bristol Myers Co
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Filing: 1968-06-13
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Granted: 1971-07-27
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Expires: 1988-06-13
Abstract
Abstract A method and article are provided with the method comprising instructing individuals in the effectiveness of bactericidal compositions by the steps of demonstrating to the individuals a graphic representation of micro-organisms upon paper or film which when immersed in water will result in the destruction of any graphic representation upon the surface of the paper or film, and immersing the paper or film in water. The preferred substrate is water-soluble paper prepared for example from cellulose ether fibers which ethers are soluble in cold water, all as is more particularly described in the following specification.
Inventors
- 👤 Roland Henry Noel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
141 words
An instructional paper for demonstrating the effectiveness of a microbiocidal composition comprising a paper sheet having a plurality of first and second spaced isolated areas, the first of said isolated areas being composed of a cold-water-soluble material, each of these first areas being provided with images thereon of micro-organisms susceptible to the microbiocidal composition, and the second of said isolated areas being composed of a material unaffected by cold water, each of these second areas being provided with images thereon of micro-organisms not susceptible to tHe microbiocidal composition, said first isolated areas being dissolvable upon contact with cold water while said second isolated areas remain unaffected by contact with cold water, whereby when the instructional paper is entirely immersed in cold water, only said first areas are destroyed so as to provide an indication of the effectiveness of the microbiocidal composition.
Claim 2
Dependent Claim
141 words
An instructional paper for demonstrating the effectiveness of a microbiocidal composition comprising a paper sheet having a plurality of first and second spaced isolated areas, the first of said isolated areas being composed of a cold-water-soluble material, each of these first areas being provided with images thereon of micro-organisms susceptible to the microbiocidal composition, and the second of said isolated areas being composed of a material unaffected by cold water, each of these second areas being provided with images thereon of micro-organisms not susceptible to tHe microbiocidal composition, said first isolated areas being dissolvable upon contact with cold water while said second isolated areas remain unaffected by contact with cold water, whereby when the instructional paper is entirely immersed in cold water, only said first areas are destroyed so as to provide an indication of the effectiveness of the microbiocidal composition.
Claim 3
Dependent Claim
31 words
The instructional paper of claim 1 in which said first isolated areas comprise a cold-water-soluble film coating on the surface of a base composed of a material unaffected by cold water.
Claim 4
Dependent Claim
21 words
The instructional paper of claim 2 in which said cold water soluble film is prepared from cold water soluble cellulose ethers.
References Cited (Backward Citations)
US2402542A
Cited
US3034922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |