Patent US2588595A successfully refreshed from Google Patents.
US2588595A
Expired / Lapsed
US
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Apparatus for facing building blocks
Assignee: ART BLOCK DEV CO
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Filing: 1950-09-23
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Granted: 1952-03-11
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Expires: 1970-09-23
Abstract
No abstract record available.
Inventors
- 👤 Warren A Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:05
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/04; B28B19/00
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) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |