US1869787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharger
Assignee: Individual
•
Filing: 1927-09-19
•
Granted: 1932-08-02
•
Expires: 1947-09-19
Abstract
No abstract record available.
Inventors
- 👤 John T Trumble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:54
CPC Classifications
F; F02; F02B; F02B39/00; F02B39/02; F02B39/04; F01; F01L; F01L5/00; F01L5/04; F01L5/06; F02B33/00; F02B33/02; F02B33/28; F02B33/30; F02B33/32; F02B33/34; F02B33/36; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027
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) | 1935-08-02 | 1936-02-01 | 1936-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-02 | 1940-02-01 | 1940-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-02 | 1944-02-01 | 1944-08-02 | $7700.00 | Window Closed / Lapsed |