Patent US679587A successfully refreshed from Google Patents.
US679587A
Expired / Lapsed
US
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Apparatus for collecting gases, vapors, and foreign particles from air.
Assignee: Individual
•
Filing: 1899-09-26
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Granted: 1901-07-30
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Expires: 1919-09-26
Abstract
No abstract record available.
Inventors
- 👤 John Zellweger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:33
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/30; B01F; B01F27/00; B01F27/05; B01F27/09; B01F27/091
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) | 1904-07-29 | 1905-01-28 | 1905-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-07-29 | 1909-01-28 | 1909-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-07-29 | 1913-01-28 | 1913-07-30 | $7700.00 | Window Closed / Lapsed |