US2792428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 2'-ethylene-bis
Assignee: EIDP Inc
•
Filing: 1953-04-17
•
Granted: 1957-05-14
•
Expires: 1973-04-17
Abstract
No abstract record available.
Inventors
- 👤 Pikl Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:55
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/12; C07C39/15; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2321620A
Cited
US2514218A
Cited
US2514347A
Cited
US2653979A
Cited
US2542688A
Cited
US2549118A
Cited
US2762787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |