US2269725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter
Assignee: Individual
•
Filing: 1937-08-11
•
Granted: 1942-01-13
•
Expires: 1957-08-11
Abstract
No abstract record available.
Inventors
- 👤 Malanowski Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:01
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D33/00; B01D33/15; B01D33/21; B01D33/23; B01D33/44; B01D33/46; B01D33/466; B01D35/00; B01D35/16; B01D2201/00; B01D2201/16; B01D2201/165; B01D2201/18; B01D2201/182; B01D37/00; B01D37/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1945-01-12 | 1945-07-14 | 1946-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-12 | 1949-07-14 | 1950-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-12 | 1953-07-14 | 1954-01-13 | $7700.00 | Window Closed / Lapsed |