US3019561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible anchor arrangement for castable or plastic refractory and method for employing the same
Assignee: HK Porter Co Inc
•
Filing: 1958-03-10
•
Granted: 1962-02-06
•
Expires: 1978-03-10
Abstract
No abstract record available.
Inventors
- 👤 Herman W Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:20
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/14; F27D1/141; F27D1/142; F27D1/02; F27D1/021; F27D1/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US939726A
Cited
US1712078A
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US2007038A
Cited
US2240117A
Cited
US2303815A
Cited
US2618961A
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US2524721A
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US2524722A
Cited
US2819693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |