US2428787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymerization products
Assignee: General Electric Co
•
Filing: 1939-10-31
•
Granted: 1947-10-14
•
Expires: 1959-10-31
Abstract
No abstract record available.
Inventors
- 👤 Alelio Gaetano F D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:25
CPC Classifications
C; C08; C08F; C08F222/00; C08F222/10; C08L; C08L67/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2078194A
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US1921756A
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US1975959A
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US2047398A
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US2005414A
Cited
US2029410A
Cited
US2195362A
Cited
US2218439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |