Patent US3385808A successfully refreshed from Google Patents.
US3385808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry pigment compositions of dyeing plastics
Assignee: Bayer AG
•
Filing: 1964-10-27
•
Granted: 1968-05-28
•
Expires: 1984-10-27
Abstract
No abstract record available.
Inventors
- 👤 Bonin Wulf Von
- 👤 Koerner Jurgen
- 👤 Hornle Reinhold
- 👤 Wolf Karlheinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:04
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08F; C08F283/00; C08F283/06; C09; C09B; C09B67/00; C09B67/006; C09B67/0063; C08J2451/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |