US2426402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast polymerization of mixtures of diallyl phthalate and an acrylic ester
Assignee: Catalin Corp of America
•
Filing: 1944-04-08
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Granted: 1947-08-26
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Expires: 1964-04-08
Abstract
No abstract record available.
Inventors
- 👤 John K Magrane
- 👤 Esterly Amos Raymond
- 👤 Richard E Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2370562A
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US2379218A
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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) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |