US2966713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding apparatus
Assignee: Vacuum Concrete Corp of America
•
Filing: 1954-02-11
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Granted: 1961-01-03
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Expires: 1974-02-11
Abstract
No abstract record available.
Inventors
- 👤 Karl P Billner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:31
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0002; B28B7/0011; B28B21/00; B28B21/02; B28B21/10; B28B21/36; B28B21/40; B28B7/28; Y; Y10; Y10S; Y10S264/00; Y10S264/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1000427A
Cited
US1278479A
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FR617809A
Cited
US2170188A
Cited
US2569612A
Cited
US2375148A
Cited
US2502789A
Cited
US2528643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |