US3835071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rug shampoo compositions
Assignee: Atlantic Richfield Co
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Filing: 1972-03-24
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Granted: 1974-09-10
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Expires: 1992-03-24
Abstract
Abstract RUG SHAMPOO COMPOSITIONS WHICH DRY TO AN EASILY REMOVABLE BRITTLE RESIDUE ON THE RUG OR UPHOLSTERY AFTER SHAMPOOING AND AVOID RAPID RESULING ARE OBTAINED BY INCORPORATING INTO RUG SHAMPOO COMPOSITIONS OF A WATERSOLUBLE, METAL, AMMONIUM OR AMINE SALT OF A STYRENEMALEIC ANHYDRIDE POLYMER OR ITS HALF-ESTER IN AMOUNT SUFFICIENT TO EMBRITTLE THE SHAMPOO RESIDUE LEFT ON THE RUG AFTER SHAMPOOING. THE CONVENTIONAL RUG SHAMPOO DETERGENTS, SUCH AS SODIUM OR MAGNESIUM LAURYL SULFATE, OR, IF DESIRED, CONVENTIONAL FOAM BUILDERS ARE EMPLOYED IN THE RUG SHAMPOO FORMULATIONS.
Inventors
- 👤 W Allen
- 👤 B Gower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:01
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0031; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |