Patent US2652714A successfully refreshed from Google Patents.
US2652714A
Expired / Lapsed
US
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Means to facilitate the laying of masonry units
Assignee: Individual
•
Filing: 1949-07-09
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Granted: 1953-09-22
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Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 Paul H Sommers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:54
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US823593A
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US929470A
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US1573263A
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US1736812A
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US1742103A
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US1744097A
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US2428374A
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US2395438A
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US2403335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |