US33005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in bleaching fatty substances
Assignee: —
•
Filing: —
•
Granted: 1861-08-06
•
Expires: 1878-08-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:59
CPC Classifications
C; C11; C11B; C11B3/00; C11B3/001; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/907; Y10S439/00; Y10S439/933; Y10S439/937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1864-08-05 | 1865-02-04 | 1865-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1868-08-05 | 1869-02-04 | 1869-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1872-08-05 | 1873-02-04 | 1873-08-06 | $7700.00 | Window Closed / Lapsed |