US2558208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing apparatus for fluid pipe systems
Assignee: PAUL CAVINS JR
•
Filing: 1947-03-18
•
Granted: 1951-06-26
•
Expires: 1967-03-18
Abstract
No abstract record available.
Inventors
- 👤 Cormany David Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:53
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2846; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/8593
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1119980A
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US2135721A
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US2216268A
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US2231807A
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US2310974A
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US2364709A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |