US3056427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact absorbing protector for internally threaded pipe ends
Assignee: Individual
•
Filing: 1959-10-14
•
Granted: 1962-10-02
•
Expires: 1979-10-14
Abstract
No abstract record available.
Inventors
- 👤 Edward F Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:20
CPC Classifications
F; F16; F16L; F16L57/00; F16L57/005; E; E21; E21B; E21B17/00; E21B17/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1674998A
Cited
US2277713A
Cited
US2627877A
Cited
US2857510A
Cited
US2724463A
Cited
US2826222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |