US2767392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak detector for pressure fuel lines
Assignee: ACF Industries Inc
•
Filing: 1953-07-08
•
Granted: 1956-10-16
•
Expires: 1973-07-08
Abstract
No abstract record available.
Inventors
- 👤 Alex N Szwargulski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:45
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/16; G01M3/18; G01M3/26; G01M3/28; G01M3/2807; G01M3/283; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2004769A
Cited
US2151092A
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US2326557A
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US2438441A
Cited
US2520624A
Cited
US2603697A
Cited
US2691773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |