US2458825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug cleaner
Assignee: Individual
•
Filing: 1946-08-26
•
Granted: 1949-01-11
•
Expires: 1966-08-26
Abstract
No abstract record available.
Inventors
- 👤 Alexander J Battey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:34
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/32; B24C3/34; Y; Y10; Y10S; Y10S29/00; Y10S29/089
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1421001A
Cited
FR752590A
Cited
US2009589A
Cited
US2018741A
Cited
US2277911A
Cited
US2304956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |