US3558499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-redeposition agents
Assignee: Zeneca Inc
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Filing: 1969-07-01
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Granted: 1971-01-26
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Expires: 1989-07-01
Abstract
Abstract BUILT DETERGENT COMPOSITIONS CONTAINING AN ANTI-REDEPOSITION AGENT SELECTED FROM THE GROUP CONSISTING OF GRAFT COPOLYMERS OF A POLYMERIZABLE MONOMER AND A WATER SOLUBLE OR WATER DISPERSIBLE POLYMERIC MATERIAL OF A PHYSICAL BLEND OF A POLYMERIZABLE MONOMER AND A WATER SOLUBLE OR WATER DISPERSIBLE POLYMERIC MATERIAL.
Inventors
- 👤 Thomas J Galvin
- 👤 Francis A Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:48
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3788
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |