US667050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making artificial fuel.
Assignee: Individual
•
Filing: 1900-08-01
•
Granted: 1901-01-29
•
Expires: 1920-08-01
Abstract
No abstract record available.
Inventors
- 👤 Ellsworth B A Zwoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:20
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/02; A23G3/0236; A23G3/0252; A23G3/0289
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) | 1904-01-29 | 1904-07-30 | 1905-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-01-29 | 1908-07-30 | 1909-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-01-29 | 1912-07-30 | 1913-01-29 | $7700.00 | Window Closed / Lapsed |