Patent US3616615A successfully refreshed from Google Patents.
US3616615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Colloidal droplet collector
Assignee: United States Department of the Army
•
Filing: 1969-09-11
•
Granted: 1971-11-02
•
Expires: 1989-09-11
Abstract
Abstract AN APPARATUS FOR THE DIRECT INTERCEPTION OF LIQUID WATER FROM CLOUNDS COMPRISING AN ARRAY OF OPEN END DUCTS IN JUXTAPOSITION, A GRID POSITIONED IN FRONT OF THE ARRAY, AND COLLECTING MEANS POSITIONED AT THE BOTTOM OF THE ARRAY.
Inventors
- 👤 Robert L Woodbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:55
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/04; B01D45/08
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |