Patent US2748593A successfully refreshed from Google Patents.
US2748593A
Expired / Lapsed
US
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Masonry building wall
Assignee: COVERBOND Corp
•
Filing: 1953-11-19
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Granted: 1956-06-05
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Expires: 1973-11-19
Abstract
No abstract record available.
Inventors
- 👤 Stetter Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:49
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/42; E04B2/44; E04B2/46; E04B2002/0202; E04B2002/0243; E04B2002/0247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US312464A
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US511809A
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US641670A
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US1150967A
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US1826323A
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US2325653A
Cited
US2311628A
Cited
US2676482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |