US2908062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brick press batch distributor
Assignee: Harbison Walker Refractories Co
•
Filing: 1955-04-07
•
Granted: 1959-10-13
•
Expires: 1975-04-07
Abstract
No abstract record available.
Inventors
- 👤 Fred O Schob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:11
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/02; B28B13/0215; B28B13/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US456656A
Cited
US1613631A
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US786980A
Cited
US1184356A
Cited
GB301650A
Cited
US1961981A
Cited
US2614757A
Cited
DE818450C
Cited
US2696330A
Cited
US2713709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |