US2419035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of molding powders
Assignee: EIDP Inc
•
Filing: 1942-07-25
•
Granted: 1947-04-15
•
Expires: 1962-07-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph L Quinn
- 👤 Ewald G Spader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:10
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; C; C08; C08L; C08L1/00; C08L1/08
Claims Analysis
Total Claims: 0
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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) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |