US1890708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharger
Assignee: Individual
•
Filing: 1930-05-31
•
Granted: 1932-12-13
•
Expires: 1950-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ernest M White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:50
CPC Classifications
F; F02; F02M; F02M35/00; F02M35/10; F02M35/10242; F02M35/10262; F02M1/00; F02M35/10091; F02M35/10118; F02M35/1015; F02M35/10157; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/4392; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y10; Y10S; Y10S55/00; Y10S55/28
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) | 1935-12-13 | 1936-06-13 | 1936-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-13 | 1940-06-13 | 1940-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-13 | 1944-06-13 | 1944-12-13 | $7700.00 | Window Closed / Lapsed |