US3533222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De-dusting device for smoke and other gaseous fluids
Assignee: MEDITERRANEA IND COM Cia
•
Filing: 1966-08-31
•
Granted: 1970-10-13
•
Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Enrico Gasperini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:23
CPC Classifications
F; F23; F23J; F23J15/00; F23J15/02; F23J15/022; F23J15/027; B; B01; B01D; B01D45/00; B01D45/12; B01D45/14; F23J1/00; F23J2700/00; F23J2700/001
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE241179C
Cited
GB190429178A
Cited
US1035422A
Cited
AT84338B
Cited
US1342651A
Cited
DE341221C
Cited
FR530674A
Cited
FR559834A
Cited
US1562118A
Cited
US1803462A
Cited
FR665401A
Cited
US1760623A
Cited
US1873336A
Cited
US1867809A
Cited
US2087834A
Cited
US2031734A
Cited
DE698319C
Cited
US2289474A
Cited
US2336476A
Cited
US2431336A
Cited
US2500008A
Cited
CH271642A
Cited
CH279901A
Cited
US2758666A
Cited
GB780986A
Cited
US3257779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |