US1496757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of separating gases
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1920-07-26
•
Granted: 1924-06-03
•
Expires: 1940-07-26
Abstract
No abstract record available.
Inventors
- 👤 Warren K Lewis
- 👤 Charles S Venarle
- 👤 Robert E Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/22; B01D53/225; B01D53/226; Y; Y10; Y10S; Y10S48/00; Y10S48/05
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) | 1927-06-03 | 1927-12-03 | 1928-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-06-03 | 1931-12-03 | 1932-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-06-03 | 1935-12-03 | 1936-06-03 | $7700.00 | Window Closed / Lapsed |