Patent US2088577A successfully refreshed from Google Patents.
US2088577A
Expired / Lapsed
US
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Chemical processes and products resulting therefrom
Assignee: EIDP Inc
•
Filing: 1932-12-27
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Granted: 1937-08-03
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Expires: 1952-12-27
Abstract
No abstract record available.
Inventors
- 👤 Rollin F Conaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:45
CPC Classifications
C; C09; C09J; C09J129/00; C09J129/12; C09J167/00; Y; Y10; Y10S; Y10S36/00; Y10S36/02; Y10S8/00; Y10S8/10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1940-08-02 | 1941-02-01 | 1941-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-08-02 | 1945-02-01 | 1945-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-08-02 | 1949-02-01 | 1949-08-03 | $7700.00 | Window Closed / Lapsed |