Patent US3524722A successfully refreshed from Google Patents.
US3524722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of carbon dioxide from natural gas
Assignee: ConocoPhillips Co
•
Filing: 1966-06-08
•
Granted: 1970-08-18
•
Expires: 1986-06-08
Abstract
No abstract record available.
Inventors
- 👤 Richard L Every
- 👤 Ralph Leroy Grimsley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:59
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/62; C01; C01B; C01B21/00; C01B21/082; C01B21/12; C07; C07C; C07C7/00; C07C7/148; C07C7/14858; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151
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) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |