US863894A
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Assignee: Amstar Corp
•
Filing: 1906-06-01
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Granted: 1907-08-20
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Expires: 1926-06-01
Abstract
No abstract record available.
Inventors
- 👤 Bruno F Arendt
- 👤 Ralph H Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:16
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/164
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) | 1910-08-19 | 1911-02-18 | 1911-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-08-19 | 1915-02-18 | 1915-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-08-19 | 1919-02-18 | 1919-08-20 | $7700.00 | Window Closed / Lapsed |