Patent US2642674A successfully refreshed from Google Patents.
US2642674A
Expired / Lapsed
US
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Implement for use in laying square tile
Assignee: Individual
•
Filing: 1950-09-01
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Granted: 1953-06-23
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Expires: 1970-09-01
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Schell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:20
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/20; E04F21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US703928A
Cited
US904823A
Cited
US1708551A
Cited
US1918228A
Cited
US1939815A
Cited
US2144697A
Cited
US2466919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |