US2485710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for continuously neutralizing dry acid cloth
Assignee: JP Stevens and Co Inc
•
Filing: 1945-03-03
•
Granted: 1949-10-25
•
Expires: 1965-03-03
Abstract
No abstract record available.
Inventors
- 👤 Roland E Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:37
CPC Classifications
D; D06; D06C; D06C7/00; D06C7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US321899A
Cited
US1819051A
Cited
US1943684A
Cited
US1992396A
Cited
US1984794A
Cited
US2115630A
Cited
US2176706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |