US2425669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser
Assignee: Townson & Mercer Ltd
•
Filing: 1944-08-03
•
Granted: 1947-08-12
•
Expires: 1964-08-03
Abstract
No abstract record available.
Inventors
- 👤 Brock Raymond Barrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:40
CPC Classifications
F; F28; F28B; F28B1/00; B; B01; B01D; B01D5/00; B01D5/0003; B01D5/0006; B01D5/0057; B01D5/006; B01D5/0063; G; G01; G01N; G01N25/00; G01N25/14; G01N25/145; Y; Y10; Y10S; Y10S165/00; Y10S165/184; Y10S165/205; Y10S165/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |