US2629131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the manufacture of hollow cast articles
Assignee: Sun Rubber Co
•
Filing: 1950-08-16
•
Granted: 1953-02-24
•
Expires: 1970-08-16
Abstract
No abstract record available.
Inventors
- 👤 Martin Henry
- 👤 Rekettye Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:01
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/02; B29C41/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1328887A
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US1373121A
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US1958422A
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US1990260A
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US2469892A
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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) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |