Patent US3514283A successfully refreshed from Google Patents.
US3514283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for absorption of undesirable gaseous effluents
Assignee: Freeport Minerals Corp
•
Filing: 1968-01-30
•
Granted: 1970-05-26
•
Expires: 1988-01-30
Abstract
No abstract record available.
Inventors
- 👤 William A Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:57
CPC Classifications
C; C22; C22B; C22B7/00; C22B7/02; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |