US2167028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condenser
Assignee: Lummus Technology LLC
•
Filing: 1935-09-05
•
Granted: 1939-07-25
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Expires: 1955-09-05
Abstract
No abstract record available.
Inventors
- 👤 Frank J Mcgovern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:15
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0033; B01D5/0045; B01D5/0003; B01D5/0009; B01D5/0048; B01D5/0057; B01D5/006; B01D5/0063; B01D5/0078; B01D5/0093; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-07-24 | 1943-01-23 | 1943-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-24 | 1947-01-23 | 1947-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-24 | 1951-01-23 | 1951-07-25 | $7700.00 | Window Closed / Lapsed |