US3384446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for disinfecting gases
Assignee: Elektro-Aerosol Ziems and Co
•
Filing: 1964-02-24
•
Granted: 1968-05-21
•
Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Ziems Helmut
- 👤 Bonicke Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:39
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1928963A
Cited
GB368118A
Cited
US2150263A
Cited
US2207576A
Cited
US2525347A
Cited
US2536178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |