Patent US2107197A successfully refreshed from Google Patents.
US2107197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peocess for the preparation of wet
Assignee: —
•
Filing: —
•
Granted: 1938-02-01
•
Expires: 1955-02-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:44
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/01; C07C309/02; C07C309/03; C07C309/07; C07C303/00; C07C303/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
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) | 1941-01-31 | 1941-08-02 | 1942-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-01-31 | 1945-08-02 | 1946-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-01-31 | 1949-08-02 | 1950-02-01 | $7700.00 | Window Closed / Lapsed |