US3464667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete wall form panel attachment for the production of a decorative wall surface effect
Assignee: Superior Concrete Accessories Inc
•
Filing: 1967-09-07
•
Granted: 1969-09-02
•
Expires: 1987-09-07
Abstract
No abstract record available.
Inventors
- 👤 Edward F Sledz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:42
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/065; E04G17/0655; E04G17/0658; E04G9/00; E04G9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2116597A
Cited
US2190748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |