Patent US3464272A successfully refreshed from Google Patents.
US3464272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous slurry sampler and deaerator
Assignee: Freeport Minerals Corp
•
Filing: 1968-05-13
•
Granted: 1969-09-02
•
Expires: 1988-05-13
Abstract
No abstract record available.
Inventors
- 👤 William Alexander Griffith
- 👤 Paul Eugene Link
- 👤 Benny Ray Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:21
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N2001/1006; G01N2001/1012; G01N2001/1025; G01N35/00; G01N2035/00178; G01N2035/00207; G01N2035/00217
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2738679A
Cited
US3110183A
Cited
US3175402A
Cited
US3198017A
Cited
US3252328A
Cited
US3279260A
Cited
US3387497A
Cited
US3397582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |