Patent US2478097A successfully refreshed from Google Patents.
US2478097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter
Assignee: Air Maze Corp
•
Filing: 1944-04-07
•
Granted: 1949-08-02
•
Expires: 1964-04-07
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Glanzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:23
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/10; B01D39/12; B01D46/00; Y; Y10; Y10S; Y10S55/00; Y10S55/45; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |