US658890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bunsen burner.
Assignee: Individual
•
Filing: 1900-03-15
•
Granted: 1900-10-02
•
Expires: 1920-03-15
Abstract
No abstract record available.
Inventors
- 👤 Frank M Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:47
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/14; F23D14/145
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) | 1903-10-02 | 1904-04-02 | 1904-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-10-02 | 1908-04-02 | 1908-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-10-02 | 1912-04-02 | 1912-10-02 | $7700.00 | Window Closed / Lapsed |