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US3512318A
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Assignee: Superior Concrete Accessories Inc
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Filing: 1968-07-23
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Granted: 1970-05-19
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Expires: 1988-07-23
Abstract
No abstract record available.
Inventors
- 👤 Norman G Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:14
CPC Classifications
E; E06; E06B; E06B1/00; E06B1/04; E06B1/24; E04; E04G; E04G15/00; E04G15/06; E04G15/061; E06B1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1332030A
Cited
US2109660A
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US2847731A
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US2937065A
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US3213584A
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US3246433A
Cited
US3319985A
Cited
US3375623A
Cited
US3319384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |