US2467552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leakage testing gauge
Assignee: Federal Products Corp
•
Filing: 1945-04-20
•
Granted: 1949-04-19
•
Expires: 1965-04-20
Abstract
No abstract record available.
Inventors
- 👤 Graves Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:54
CPC Classifications
G; G01; G01M; G01M13/00; G01M13/005; G01M3/00; G01M3/02; G01M3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2003949A
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US1096894A
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US1027834A
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US1462115A
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US1592389A
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US1764616A
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US1901966A
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US1883522A
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US2026187A
Cited
GB391218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |