Patent US2631189A successfully refreshed from Google Patents.
US2631189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static wick discharger
Assignee: Dayton Aircraft Products Inc
•
Filing: 1950-01-27
•
Granted: 1953-03-10
•
Expires: 1970-01-27
Abstract
No abstract record available.
Inventors
- 👤 Mary R Sullivan
- 👤 Houk Frances Rudy
- 👤 Nelson S Talbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:51
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/27; H01Q1/28; B; B64; B64D; B64D45/00; B64D45/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1910391A
Cited
US2093651A
Cited
US2309584A
Cited
GB547481A
Cited
US2302003A
Cited
GB576631A
Cited
US2386095A
Cited
US2495199A
Cited
US2466311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |