Patent US2879575A successfully refreshed from Google Patents.
US2879575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing concrete products on a floor
Assignee: Individual
•
Filing: 1953-03-27
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Granted: 1959-03-31
•
Expires: 1973-03-27
Abstract
No abstract record available.
Inventors
- 👤 Giesen Jan Hendrik Lutherus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:49
CPC Classifications
B; B28; B28B; B28B5/00; B28B1/00; B28B1/08; B28B1/10; B28B1/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1936216A
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US812123A
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US805914A
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US937781A
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US2303884A
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US2341012A
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US2407168A
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US2382458A
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US2446061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |