US2794336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lag screw anchoring insert for a concrete slab
Assignee: Superior Concrete Accessories Inc
•
Filing: 1953-06-25
•
Granted: 1957-06-04
•
Expires: 1973-06-25
Abstract
No abstract record available.
Inventors
- 👤 Harry G Ballou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:07
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US888671A
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US2100614A
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US2281946A
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US2345976A
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US2363156A
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US2593022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |