US2370599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug breather
Assignee: Individual
•
Filing: 1944-01-29
•
Granted: 1945-02-27
•
Expires: 1964-01-29
Abstract
No abstract record available.
Inventors
- 👤 Whittaker Henry Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:24
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/02; H01T13/16; F; F16; F16K; F16K15/00; F16K15/02; F16K15/04; F16K15/042; F16K15/044; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7904; Y10T137/7922; Y10T137/7927; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87845
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) | 1948-02-27 | 1948-08-28 | 1949-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-27 | 1952-08-28 | 1953-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-27 | 1956-08-28 | 1957-02-27 | $7700.00 | Window Closed / Lapsed |