Patent US2451145A successfully refreshed from Google Patents.
US2451145A
Expired / Lapsed
US
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Lined pipe
Assignee: MW Kellogg Co
•
Filing: 1944-06-02
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Granted: 1948-10-12
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Expires: 1964-06-02
Abstract
No abstract record available.
Inventors
- 👤 Albert L Baker
- 👤 Arthur R C Markl
- 👤 Blahut Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:48
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/14; F16L59/147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1930285A
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US2013193A
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US2108159A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-12 | 1952-04-12 | 1952-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-12 | 1956-04-12 | 1956-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-12 | 1960-04-12 | 1960-10-12 | $7700.00 | Window Closed / Lapsed |