US3205084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making nitridized titanium flake pigment
Assignee: EIDP Inc
•
Filing: 1962-04-18
•
Granted: 1965-09-07
•
Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Oscar J C Klein
- 👤 Jr Edward F Klenke
- 👤 Charles W Manger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:05
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/62; C01; C01P; C01P2004/00; C01P2004/20; C01P2004/60; C01P2004/61; C01P2004/62; C01P2004/80; C01P2006/00; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
IN A PROCESS FOR PRODUCING A GOLDEN-COLORED PIGMENT IN THE FORM OF DISCRETE, NITRIDIZED TITANIUM FLAKES HAVING A THICKNESS OF FROM 0.1 TO 3.0 MICRONS, THE STEPS COMPRISING (1) EFFECTING CONTACT BETWEEN NITROGEN GAS AND TITANIUM FLAKES HAVING A THICKNESS OF 0.1 TO 3.0 MICRONS WHILE MAINTAINING THE TEMPERATURE IN THE RANGE FROM 1000 TO 1100*C., WHEREBY NITRIDATION OF THE TITANIUM BY THE NITROGEN OCCURS, AND (2) CONTINUING SUCH CONTACT UNTIL THE FLAKES CONTAIN FROM 12 TO 22.6% BY WEIGHT OF CHEMICALLY COMBINED NITROGEN.
Claim 2
Dependent Claim
84 words
IN A PROCESS FOR PRODUCING A GOLDEN-COLORED PIGMENT IN THE FORM OF DISCRETE, NITRIDIZED TITANIUM FLAKES HAVING A THICKNESS OF FROM 0.1 TO 3.0 MICRONS, THE STEPS COMPRISING (1) EFFECTING CONTACT BETWEEN NITROGEN GAS AND TITANIUM FLAKES HAVING A THICKNESS OF 0.1 TO 3.0 MICRONS WHILE MAINTAINING THE TEMPERATURE IN THE RANGE FROM 1000 TO 1100*C., WHEREBY NITRIDATION OF THE TITANIUM BY THE NITROGEN OCCURS, AND (2) CONTINUING SUCH CONTACT UNTIL THE FLAKES CONTAIN FROM 12 TO 22.6% BY WEIGHT OF CHEMICALLY COMBINED NITROGEN.
References Cited (Backward Citations)
CA603282A
Cited
US3032397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |