US943182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the manufacture of producer-gas.
Assignee: Individual
•
Filing: 1907-08-03
•
Granted: 1909-12-14
•
Expires: 1927-08-03
Abstract
No abstract record available.
Inventors
- 👤 William John Crossley
- 👤 Thomas Rigby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:37
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/20; C10J3/22; C10J3/24; C10J3/26; Y; Y10; Y10S; Y10S48/00; Y10S48/01
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) | 1912-12-13 | 1913-06-14 | 1913-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-12-13 | 1917-06-14 | 1917-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-12-13 | 1921-06-14 | 1921-12-14 | $7700.00 | Window Closed / Lapsed |