Patent US3519243A successfully refreshed from Google Patents.
US3519243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable slab mold
Assignee: Individual
•
Filing: 1967-08-15
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Granted: 1970-07-07
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Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Armin Kleiber
- 👤 Wilfried Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:31
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/24; B28B7/241; B28B7/243; B28B7/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3274306A
Cited
US1596868A
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US2250020A
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US2495100A
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US2916796A
Cited
FR1243315A
Cited
US3037259A
Cited
FR1334539A
Cited
US3110949A
Cited
FR1442496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |