Patent US3430641A successfully refreshed from Google Patents.
US3430641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of redispersing deposits
Assignee: ChampionX LLC
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Filing: 1966-02-16
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Granted: 1969-03-04
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:46
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/02; C11D1/04; C11D1/10; C02; C02F; C02F2103/00; C02F2103/02; C02F2103/023; C02F5/00; C02F5/08; C02F5/10; C02F5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS WHICH COMPRISES REDISPERSING INTO AQUEOUS SYSTEMS LOOSELY ADHERENT DEPOSITS MADE UP ON NONBONDED PARTICULATE MATTER IN CONTACT WITH SOLID SURFACES FORMING A PART OF SAID SYSTEMS BY TREATMENT OF SAID SYSTEMS WITH A REDISPERSING AGENT HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
41 words
A PROCESS WHICH COMPRISES REDISPERSING INTO AQUEOUS SYSTEMS LOOSELY ADHERENT DEPOSITS MADE UP ON NONBONDED PARTICULATE MATTER IN CONTACT WITH SOLID SURFACES FORMING A PART OF SAID SYSTEMS BY TREATMENT OF SAID SYSTEMS WITH A REDISPERSING AGENT HAVING THE STRUCTURAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |