US2460757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid circulating apparatus
Assignee: Precision Scientific Co
•
Filing: 1945-08-24
•
Granted: 1949-02-01
•
Expires: 1965-08-24
Abstract
No abstract record available.
Inventors
- 👤 Kurz William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1167357A
Cited
US1738989A
Cited
US1947851A
Cited
US2041207A
Cited
US2071393A
Cited
US2114547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |