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US2817929A
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US
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Method and device for grinding tiles
Assignee: MARIENBERGER MOSAIKPLATTENFABR
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Filing: 1955-07-11
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Granted: 1957-12-31
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Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Engel Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:30
CPC Classifications
B; B24; B24B; B24B9/00; B24B9/02; B24B9/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US19702A
Cited
US369074A
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US542159A
Cited
US961560A
Cited
US1863303A
Cited
US1933640A
Cited
US2684088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |