US2895204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating castings of lightweight concrete in open casting molds
Assignee: Casius Corp Ltd
•
Filing: 1956-04-30
•
Granted: 1959-07-21
•
Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Olsson Karl Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:56
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/12; B28B11/08; B28B11/0863
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL53176C
Cited
CH54794A
Cited
US2061497A
Cited
FR879013A
Cited
GB599630A
Cited
US2545002A
Cited
US2586714A
Cited
US2718822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-20 | 1963-01-19 | 1963-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-20 | 1967-01-19 | 1967-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-20 | 1971-01-19 | 1971-07-21 | $7700.00 | Window Closed / Lapsed |