US2622301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding machine for hollow stones and the like
Assignee: SVANSKA TELL AB
•
Filing: 1951-05-09
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Granted: 1952-12-23
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Expires: 1971-05-09
Abstract
No abstract record available.
Inventors
- 👤 Argarden Carl Gustaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:23
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0029; B28B7/0035; B28B7/0038; B28B1/00; B28B1/08; B28B1/087; B28B3/00; B28B3/02; B28B3/08; B28B3/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1921003A
Cited
US2152569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |