US778149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating pyrites.
Assignee: Individual
•
Filing: 1903-12-05
•
Granted: 1904-12-20
•
Expires: 1923-12-05
Abstract
No abstract record available.
Inventors
- 👤 William Baynard Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:12
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/10; C21B13/105; F; F27; F27B; F27B9/00; F27B9/14; F27B9/16
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) | 1907-12-20 | 1908-06-20 | 1908-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-12-20 | 1912-06-20 | 1912-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-12-20 | 1916-06-20 | 1916-12-20 | $7700.00 | Window Closed / Lapsed |