US2484384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process
Assignee: California Research LLC
•
Filing: 1946-02-11
•
Granted: 1949-10-11
•
Expires: 1966-02-11
Abstract
No abstract record available.
Inventors
- 👤 Irving E Levine
- 👤 Leon T Folsom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:07
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/914; Y10S585/949; Y10S585/955
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1999345A
Cited
US2085524A
Cited
US2317878A
Cited
US2196363A
Cited
US2165373A
Cited
US2360632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |