US2274684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter medium and filter body made therefrom
Assignee: Metal Textiles Corp
•
Filing: 1940-11-16
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Granted: 1942-03-03
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Expires: 1960-11-16
Abstract
No abstract record available.
Inventors
- 👤 Alfred M Goodloe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:49
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/10; B01D39/12; D; D04; D04B; D04B21/00; D04B21/14; D10; D10B; D10B2505/00; D10B2505/04; Y; Y10; Y10S; Y10S55/00; Y10S55/43
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) | 1945-03-02 | 1945-09-01 | 1946-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-03-02 | 1949-09-01 | 1950-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-03-02 | 1953-09-01 | 1954-03-03 | $7700.00 | Window Closed / Lapsed |