US707774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-filter.
Assignee: Individual
•
Filing: 1902-05-03
•
Granted: 1902-08-26
•
Expires: 1922-05-03
Abstract
No abstract record available.
Inventors
- 👤 Barnett W Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:35
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/02
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) | 1905-08-25 | 1906-02-24 | 1906-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-08-25 | 1910-02-24 | 1910-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-08-25 | 1914-02-24 | 1914-08-26 | $7700.00 | Window Closed / Lapsed |