US2874409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic mold base
Assignee: DETROIT MOLD ENGINEERING Co
•
Filing: 1954-06-21
•
Granted: 1959-02-24
•
Expires: 1974-06-21
Abstract
No abstract record available.
Inventors
- 👤 Ivar T Quarnstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:07
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/26; B29C45/2602
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2596993A
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US2560413A
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US2652297A
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US2645815A
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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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |