US1831470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for supercharging internal combustion engines
Assignee: DEAN M SOLENBERGER
•
Filing: 1927-07-05
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Granted: 1931-11-10
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Expires: 1947-07-05
Abstract
No abstract record available.
Inventors
- 👤 Earl H Sherbondy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:53
CPC Classifications
F; F02; F02B; F02B1/00; F02B27/00; F02B27/02; F02B29/00; F02B29/02; F02M; F02M26/00; F02M26/13; F02M26/14; F02M26/16; F02M26/17; F02M26/19; F02B2275/00; F02B2275/22; F02B2720/00; F02B2720/12; F02B2720/124; F02D; F02D9/00; F02D9/02; F02D2009/0201; F02D2009/0276; F02M26/21; F02M26/41; F02M26/65; F02M26/70; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1934-11-09 | 1935-05-11 | 1935-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-11-09 | 1939-05-11 | 1939-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-11-09 | 1943-05-11 | 1943-11-10 | $7700.00 | Window Closed / Lapsed |