Patent US2124648A successfully refreshed from Google Patents.
US2124648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vent for electrolytic condensers
Assignee: Individual
•
Filing: 1934-03-12
•
Granted: 1938-07-26
•
Expires: 1954-03-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:48
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/004; H01G9/08; H01G9/12; Y; Y10; Y10S; Y10S206/00; Y10S206/805; Y10S220/00; Y10S220/27
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) | 1941-07-25 | 1942-01-24 | 1942-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-25 | 1946-01-24 | 1946-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-25 | 1950-01-24 | 1950-07-26 | $7700.00 | Window Closed / Lapsed |