US2004869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charge forming device
Assignee: Individual
•
Filing: 1934-03-26
•
Granted: 1935-06-11
•
Expires: 1954-03-26
Abstract
No abstract record available.
Inventors
- 👤 Hogg John Webb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:19
CPC Classifications
F; F02; F02M; F02M69/00; F02M2700/00; F02M2700/43; F02M2700/4397; Y; Y10; Y10S; Y10S261/00; Y10S261/02; Y10S261/52; Y10S261/53; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2521
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) | 1938-06-10 | 1938-12-10 | 1939-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-06-10 | 1942-12-10 | 1943-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-06-10 | 1946-12-10 | 1947-06-11 | $7700.00 | Window Closed / Lapsed |