US3016980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic precipitator
Assignee: American Air Filter Co Inc
•
Filing: 1959-03-09
•
Granted: 1962-01-16
•
Expires: 1979-03-09
Abstract
No abstract record available.
Inventors
- 👤 Don J Gonzalez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:16
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/12; B03C3/34; B03C3/86
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |