US3249453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic preparation of finely dispersed dyestuff
Assignee: Bayer AG
•
Filing: 1962-07-24
•
Granted: 1966-05-03
•
Expires: 1982-07-24
Abstract
No abstract record available.
Inventors
- 👤 Schnoring Hildegard
- 👤 Schonamsgruber Matthaus
- 👤 Erdmenger Rudolf
- 👤 Molls Hans-Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:39
CPC Classifications
C; C09; C09B; C09B41/00; C09B41/006; C09B41/008; A; A61; A61K; A61K35/00; A61K35/12; A61K35/32; B; B01; B01F; B01F23/00; B01F23/50; B01F23/55; B01F23/551; B01F31/00; B01F31/80; B01F31/86; B01J; B01J19/00; B01J19/08; B01J19/10; C09B67/00; C09B67/0001; C09B67/0017; C09B67/0096; C09C; C09C3/00; C09C3/04; B01F2101/00; B01F2101/30; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR PRODUCING EASILY MILLED PARTICLES OF A COLOR COMPONENT SELECTED FROM THE GROUP CONSISTING OF DYESTUFF AND PIGMENT PARTICLES, COMPRISING INITIALLY FORMING PARTICLES OF COLOR COMPONENT IN STATU NASCENDI IN AN ULTRASONIC FIELD HAVING AT THE LOCUS OF FORMATION A MAXIMUM OF SOUND INTENSITY, AND THEREAFTER EXPOSING THE COLOR COMPONENT TO A ZONE OF DECREASING SOUND INTENSITY, THE ULTRASONIC FIELD EMPLOYED HAVING A FREQUENCY RANGE OF ABOUT 15-800 KHZ. AND AN INTENSITY OF ABOUT 20-500 WATT/CM.
Claim 2
Dependent Claim
78 words
A PROCESS FOR PRODUCING EASILY MILLED PARTICLES OF A COLOR COMPONENT SELECTED FROM THE GROUP CONSISTING OF DYESTUFF AND PIGMENT PARTICLES, COMPRISING INITIALLY FORMING PARTICLES OF COLOR COMPONENT IN STATU NASCENDI IN AN ULTRASONIC FIELD HAVING AT THE LOCUS OF FORMATION A MAXIMUM OF SOUND INTENSITY, AND THEREAFTER EXPOSING THE COLOR COMPONENT TO A ZONE OF DECREASING SOUND INTENSITY, THE ULTRASONIC FIELD EMPLOYED HAVING A FREQUENCY RANGE OF ABOUT 15-800 KHZ. AND AN INTENSITY OF ABOUT 20-500 WATT/CM.
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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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |