Patent EP0350610A2 successfully refreshed from Google Patents.
US1108752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of hydrogen peroxid.
Assignee: Henkel AG and Co KGaA
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Filing: 1913-06-16
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Granted: 1914-08-25
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Expires: 1933-06-16
Abstract
No abstract record available.
Inventors
- 👤 Hugo Henkel
- 👤 Walter Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:07
CPC Classifications
C; C01; C01B; C01B15/00; C01B15/01; C01B15/029; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40
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) | 1917-08-24 | 1918-02-23 | 1918-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-08-24 | 1922-02-23 | 1922-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-08-24 | 1926-02-23 | 1926-08-25 | $7700.00 | Window Closed / Lapsed |