US2419347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization catalysts
Assignee: Goodrich Corp
•
Filing: 1944-03-13
•
Granted: 1947-04-22
•
Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Folt
- 👤 Forrest W Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:28
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/04; C08F2/10; C08F4/00; C08F4/28; C08F4/32; Y; Y10; Y10S; Y10S260/00; Y10S260/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1874107A
Cited
US2300566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |