US2768747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bleaching fatty materials
Assignee: Pintsch Bamag AG
•
Filing: 1952-01-22
•
Granted: 1956-10-30
•
Expires: 1972-01-22
Abstract
No abstract record available.
Inventors
- 👤 Hugel Ernst
- 👤 Spangenberg Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/10
Claims Analysis
Total Claims: 0
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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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |