Patent EP0040931B1 successfully refreshed from Google Patents.
EP0040931B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fabric treatment products
Assignee: Unilever PLC
•
Filing: 1981-05-14
•
Granted: 1984-03-28
•
Expires: 2001-05-14
Abstract
Abstract A fabric treatment product for use in washing machines consists of a bag formed of water-insoluble, water-impermeable synthetic plastics sheet material containing a fabric treatment composition comprising a liquid, the bag having a weak seal that will be opened by the mechanical action of a washing machine.
Inventors
- 👤 James Francis Davies
- 👤 John Barry Tune
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 21:58
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/808; B65D75/00; B65D75/52; B65D75/58; B65D75/5855; C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/046; D; D06; D06F; D06F39/00; D06F39/02; D06F39/024; B65D75/04; B65D75/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
65 words
A fabric treatment product in the form of a bag formed of water-insoluble, water-impermeable thermoplastic sheet material and containing a fabric treatment composition, characterised in that the fabric treatment composition is in the form of a liquid and the bag is closed by at least one mechanically weak heat-seal so constructed as to be opened by mechanical action when in use in a washing machine.
Claim 2
Dependent Claim
65 words
A fabric treatment product in the form of a bag formed of water-insoluble, water-impermeable thermoplastic sheet material and containing a fabric treatment composition, characterised in that the fabric treatment composition is in the form of a liquid and the bag is closed by at least one mechanically weak heat-seal so constructed as to be opened by mechanical action when in use in a washing machine.
Claim 3
Dependent Claim
44 words
A product according to claim 1, characterised in that the weak heat-seal is formed by two opposed bag walls of thermoplastic material heat-sealed to a separator sheet positioned between them, the separator sheet being of porous material not thermoplastic at the heat-sealing temperature used.
Claim 4
Dependent Claim
16 words
A product according to claim 2, characterised in that the separator sheet is of fibrous material.
Claim 5
Dependent Claim
18 words
A product according to claim 3, characterised in that the separator sheet is of paper of nonwoven fabric.
References Cited (Backward Citations)
DE868474C
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.