US2044467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleansing preparation
Assignee: PQ Corp
•
Filing: 1931-05-27
•
Granted: 1936-06-16
•
Expires: 1951-05-27
Abstract
No abstract record available.
Inventors
- 👤 Theodore K Cleveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:51
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/10; C11D7/14
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) | 1939-06-16 | 1939-12-16 | 1940-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-16 | 1943-12-16 | 1944-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-16 | 1947-12-16 | 1948-06-16 | $7700.00 | Window Closed / Lapsed |