Patent US3526394A successfully refreshed from Google Patents.
US3526394A
Expired / Lapsed
US
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Insert bearings for kiln chain brackets
Assignee: Hanford Foundry Co
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Filing: 1968-09-18
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Granted: 1970-09-01
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Expires: 1988-09-18
Abstract
No abstract record available.
Inventors
- 👤 Harry D Howell Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:40
CPC Classifications
F; F27; F27B; F27B7/00; F27B7/14; F27B7/16; F27B7/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |