US2083732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorbent apparatus
Assignee: PITTSBURGH RES CORP
•
Filing: 1936-03-03
•
Granted: 1937-06-15
•
Expires: 1956-03-03
Abstract
No abstract record available.
Inventors
- 👤 William E Moore
- 👤 George L Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:53
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0423; B01D53/0438; B01D53/26; B01D53/261; B01D2253/00; B01D2253/10; B01D2253/104; B01D2257/00; B01D2257/80; B01D2259/00; B01D2259/40; B01D2259/40003; B01D2259/40083; B01D2259/40086; B01D2259/40088; B01D2259/40096; B01D2259/402; B01D53/0446
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) | 1940-06-14 | 1940-12-14 | 1941-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-14 | 1944-12-14 | 1945-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-14 | 1948-12-14 | 1949-06-15 | $7700.00 | Window Closed / Lapsed |