Patent US2876119A successfully refreshed from Google Patents.
US2876119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing ink compositions
Assignee: Evonik Operations GmbH
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Filing: 1954-11-15
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Granted: 1959-03-03
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Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Dithmar Karl
- 👤 Debus Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:08
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A NEW INK COMPOSITION COMPRISING INK BODY AND 0.5-3% BY WEIGHT OF THE BODY OF FINELY-DIVIDED METAL OXIDE PRODUCED PYROGENICALLY AND HAVING SUBSTANTIALLY NO PARTICLES LARGER THAN ABOUT 50 MILLIMICRONS IN EQUIVALENT SPHERICAL DIAMETER.
Claim 2
Dependent Claim
34 words
A NEW INK COMPOSITION COMPRISING INK BODY AND 0.5-3% BY WEIGHT OF THE BODY OF FINELY-DIVIDED METAL OXIDE PRODUCED PYROGENICALLY AND HAVING SUBSTANTIALLY NO PARTICLES LARGER THAN ABOUT 50 MILLIMICRONS IN EQUIVALENT SPHERICAL DIAMETER.
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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |