US2618142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for fluid treatment of materials
Assignee: Rodney Hunt Machine Co
•
Filing: 1947-12-17
•
Granted: 1952-11-18
•
Expires: 1967-12-17
Abstract
No abstract record available.
Inventors
- 👤 Harold H Belcher
- 👤 Bliss M Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:53
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/24; D06B23/00; D06B23/06; D06B3/04; D06B3/06
Claims Analysis
Total Claims: 0
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US2474717A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |