US3542194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid separators
Assignee: Plough Contracts Ltd
•
Filing: 1969-08-29
•
Granted: 1970-11-24
•
Expires: 1989-08-29
Abstract
No abstract record available.
Inventors
- 👤 Dick Valentine Gough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:48
CPC Classifications
B; B01; B01D; B01D36/00; B01D36/003; B01D35/00; B01D35/14; B01D35/143; B01D35/147; B01D35/157; B01D35/1573; B01D35/1576; B01D35/18
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) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |