Patent US2568414A successfully refreshed from Google Patents.
US2568414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe joint
Assignee: Individual
•
Filing: 1947-01-07
•
Granted: 1951-09-18
•
Expires: 1967-01-07
Abstract
No abstract record available.
Inventors
- 👤 Ira A Russ
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:30
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/12; F16L23/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US420391A
Cited
DE374623C
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US1242568A
Cited
US1978019A
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US2211983A
Cited
US2303114A
Cited
US2403364A
Cited
US2471759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |