US1270949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making producer-gas.
Assignee: GENERAL REDUCTION GAS AND BY-PRODUCTS Co
•
Filing: 1917-11-24
•
Granted: 1918-07-02
•
Expires: 1937-11-24
Abstract
No abstract record available.
Inventors
- 👤 John W Hornsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1921-07-01 | 1921-12-31 | 1922-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-07-01 | 1925-12-31 | 1926-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-07-01 | 1929-12-31 | 1930-07-02 | $7700.00 | Window Closed / Lapsed |