US2479693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of potassium hydroxide composition
Assignee: Commercial Solvents Corp
•
Filing: 1945-06-11
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Granted: 1949-08-23
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Expires: 1965-06-11
Abstract
No abstract record available.
Inventors
- 👤 Glen H Morey
- 👤 Everet F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:08
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C01; C01D; C01D1/00; C01D1/04; C01D1/44; C12; C12C; C12C11/00; C12C11/02; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1835271A
Cited
US2019468A
Cited
US2288667A
Cited
US2326099A
Cited
US2367273A
Cited
US2385547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |