Patent US2557544A successfully refreshed from Google Patents.
US2557544A
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US
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Method for lining pipe
Assignee: Lock Joint Pipe Co
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Filing: 1947-11-12
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Granted: 1951-06-19
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Expires: 1967-11-12
Abstract
No abstract record available.
Inventors
- 👤 Hugh F Kennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:12
CPC Classifications
B; B28; B28B; B28B19/00; B28B19/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1223602A
Cited
GB145346A
Cited
US1573568A
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US1672941A
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GB417047A
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US2189071A
Cited
US2108371A
Cited
US2295155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |