US3525131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant for manufacturing concrete blocks
Assignee: Individual
•
Filing: 1967-12-14
•
Granted: 1970-08-25
•
Expires: 1987-12-14
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Schneider
- 👤 Klaus Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:26
CPC Classifications
B; B28; B28B; B28B15/00; B28B15/002; B28B5/00; B28B5/04; B28C; B28C9/00; B28C9/04; B28C9/0409
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL74900C
Cited
CA704810A
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US1838672A
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GB341594A
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FR1327037A
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US3217375A
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US3384939A
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US3448496A
Cited
US3430308A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |