US2428356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium aldonate compositions and method for the preparation thereof
Assignee: Poor and Co
•
Filing: 1944-03-20
•
Granted: 1947-10-07
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Expires: 1964-03-20
Abstract
No abstract record available.
Inventors
- 👤 Allan E Chester
- 👤 Frederick F Reisinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/22; C25D3/24; C07; C07C; C07C59/00; C07C59/01; C07C59/10; C07C59/105; C07F; C07F11/00; C07F11/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1228089A
Cited
US2114002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-06 | 1951-04-07 | 1951-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-06 | 1955-04-07 | 1955-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-06 | 1959-04-07 | 1959-10-07 | $7700.00 | Window Closed / Lapsed |