US1601771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrical treatment of gases and vapors
Assignee: C & C Developing Co
•
Filing: 1923-11-15
•
Granted: 1926-10-05
•
Expires: 1943-11-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert R Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:24
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/087; B01J19/088; Y; Y10; Y10S; Y10S55/00; Y10S55/38
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) | 1929-10-04 | 1930-04-05 | 1930-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-10-04 | 1934-04-05 | 1934-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-10-04 | 1938-04-05 | 1938-10-05 | $7700.00 | Window Closed / Lapsed |