US3054751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic lithographic inks
Assignee: International Business Machines Corp
•
Filing: 1958-12-30
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Granted: 1962-09-18
•
Expires: 1978-12-30
Abstract
No abstract record available.
Inventors
- 👤 Carl B Blake
- 👤 Lewis F Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:55
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/14; H01F41/16; C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/265; C09; C09C; C09C3/00; C09C3/006; C09C3/08; C09C3/10; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C01P2004/80; C01P2006/00; C01P2006/12; C01P2006/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
AN OLEOPHILIC LITHOGRAPHIC INK CONSISTING ESSENTIALLY OF A MINOR PROPORTION OF AN OLEPHILIC INK VEHICLE AND A MAJOR PROPORTION OF A MAGNETIZABLE HYDROPHOBIC PIGMENT, SAID PIGMENT CONSISTING OF NORMALLY HYDROPHILIC MAGNETIZABLE PARTICLES HAVING A LARGEST DIMENSION OF 10 MICORNS OF LESS AND A RELATIVELY THIN COATING DEPOSITED ON SAID PARTICLES, SAID COATING HAVING AN EXTERNAL SURFACE WHICH IS SUBSTANTIALLY HYDROPHOBIC AND WETTABLE BY SAID VEHICLE WHEREBY A MAGNETIZABLE WATER-REPELLING INK IS PROVIDED.
Claim 2
Dependent Claim
72 words
AN OLEOPHILIC LITHOGRAPHIC INK CONSISTING ESSENTIALLY OF A MINOR PROPORTION OF AN OLEPHILIC INK VEHICLE AND A MAJOR PROPORTION OF A MAGNETIZABLE HYDROPHOBIC PIGMENT, SAID PIGMENT CONSISTING OF NORMALLY HYDROPHILIC MAGNETIZABLE PARTICLES HAVING A LARGEST DIMENSION OF 10 MICORNS OF LESS AND A RELATIVELY THIN COATING DEPOSITED ON SAID PARTICLES, SAID COATING HAVING AN EXTERNAL SURFACE WHICH IS SUBSTANTIALLY HYDROPHOBIC AND WETTABLE BY SAID VEHICLE WHEREBY A MAGNETIZABLE WATER-REPELLING INK IS PROVIDED.
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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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |