US2633739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for pressure testing vessels, such as pipe and the like
Assignee: Individual
•
Filing: 1949-03-03
•
Granted: 1953-04-07
•
Expires: 1969-03-03
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Potts
- 👤 Jr Floyd L Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:07
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2846; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US909950A
Cited
US1811138A
Cited
GB370334A
Cited
US2062527A
Cited
US2135721A
Cited
GB551566A
Cited
US2497193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |