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Patent US3503249A successfully refreshed from Google Patents.
US3503249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for testing pipe joints
Assignee: Individual
•
Filing: 1968-05-10
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Granted: 1970-03-31
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Expires: 1988-05-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph Frank Dumond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:29
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2853; E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/124; E21B47/00; E21B47/10; E21B47/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-30 | 1973-09-29 | 1974-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-30 | 1977-09-29 | 1978-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-30 | 1981-09-29 | 1982-03-31 | $7700.00 | Window Closed / Lapsed |