US1990632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making briquettes
Assignee: WOOD BRIQUETTES Inc
•
Filing: 1932-12-23
•
Granted: 1935-02-12
•
Expires: 1952-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert T Bowling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:50
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/40; C10L5/44; B; B30; B30B; B30B11/00; Y; Y02; Y02E; Y02E50/00; Y02E50/10; Y02E50/30; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904
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) | 1938-02-11 | 1938-08-13 | 1939-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-02-11 | 1942-08-13 | 1943-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-02-11 | 1946-08-13 | 1947-02-12 | $7700.00 | Window Closed / Lapsed |