US2463680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a dust-free alkaline detergent product
Assignee: Wyandotte Chemicals Corp
•
Filing: 1945-03-31
•
Granted: 1949-03-08
•
Expires: 1965-03-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Corrigan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:42
CPC Classifications
C; C01; C01D; C01D7/00; Y; Y10; Y10S; Y10S29/00; Y10S29/031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US195267A
Cited
US1715999A
Cited
US2041448A
Cited
US2035652A
Cited
US2282018A
Cited
US2303397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |