US2452300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharger
Assignee: Old Carco LLC
•
Filing: 1944-04-13
•
Granted: 1948-10-26
•
Expires: 1964-04-13
Abstract
No abstract record available.
Inventors
- 👤 Alexander G Herreshoff
- 👤 Allen C Staley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:55
CPC Classifications
F; F02; F02B; F02B33/00; F02M; F02M2700/00; F02M2700/33; F02M2700/331
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL35436C
Cited
US1110864A
Cited
US1263056A
Cited
US2067984A
Cited
US2067757A
Cited
GB466203A
Cited
US2239305A
Cited
GB523895A
Cited
US2292233A
Cited
GB542592A
Cited
US2311936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |