US793536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic controller for filters, &c.
Assignee: Individual
•
Filing: 1905-04-18
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Granted: 1905-06-27
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Expires: 1925-04-18
Abstract
No abstract record available.
Inventors
- 👤 William Thomas Mccormick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:57
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/75; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7786; Y10T137/8593; Y10T137/86292
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) | 1908-06-26 | 1908-12-26 | 1909-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-06-26 | 1912-12-26 | 1913-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-06-26 | 1916-12-26 | 1917-06-27 | $7700.00 | Window Closed / Lapsed |