US4473507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled release laundry bleach product
Assignee: Procter and Gamble Co
•
Filing: 1983-06-28
•
Granted: 1984-09-25
•
Expires: 2003-06-28
Abstract
Abstract A granular hydrophobic peroxyacid laundry product comprising a bleach with a surfactant bleach release agent, and an acid having a pKa of from about 2 to about 7, contained inside a pouch, bag or substrate, provides a controlled bleach release laundry product for better bleaching in a laundry wash liquor. The bleach can be an alkylmonoperoxy succinic acid.
Inventors
- 👤 Frank P. Bossu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:21
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/046; C11D3/00; C11D3/39; C11D3/3902; C11D3/3937; C11D3/3945
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
17 words
A granular bleach compound of the formula ##STR14## wherein n is from about 6 to about 16.
Claim 2
Dependent Claim
17 words
A granular bleach compound of the formula ##STR14## wherein n is from about 6 to about 16.
Claim 3
Dependent Claim
14 words
The compound of claim 1 wherein n is from about 8 to about 16.
Claim 4
Dependent Claim
14 words
The compound of claim 2 wherein CH 3 (CH 2 ) n is lauryl.
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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) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |