Patent US3529720A successfully refreshed from Google Patents.
US3529720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installation for recovery of a liquid floating on a water surface
Assignee: Individual
•
Filing: 1968-04-08
•
Granted: 1970-09-22
•
Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Daniel Chablaix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:20
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/046; G; G01; G01F; G01F23/00; G01F23/30; G01F23/76; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2782929A
Cited
US2891672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |