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US2436142A
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Polyfluorocyclobutenes
Assignee: EIDP Inc
•
Filing: 1943-09-03
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Granted: 1948-02-17
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Expires: 1963-09-03
Abstract
No abstract record available.
Inventors
- 👤 Harmon Jesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:28
CPC Classifications
C; C08; C08F; C08F32/00; C08F32/02; C08F32/04; C07; C07C; C07C17/00; C07C17/23; C07C23/00; C07C23/02; C07C23/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146720A
Cited
US2301356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-16 | 1951-08-18 | 1952-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-16 | 1955-08-18 | 1956-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-16 | 1959-08-18 | 1960-02-17 | $7700.00 | Window Closed / Lapsed |