Patent US3453182A successfully refreshed from Google Patents.
US3453182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of amount of vapor in feed to vapor-liquid separation zone by detecting the temperature differential across a pressure differential zone
Assignee: Phillips Petroleum Co
•
Filing: 1966-09-16
•
Granted: 1969-07-01
•
Expires: 1986-09-16
Abstract
No abstract record available.
Inventors
- 👤 Martin R Reber
- 👤 Paul H Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:35
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4233; C; C08; C08J; C08J11/00; C08J11/02; Y; Y10; Y10S; Y10S203/00; Y10S203/09; Y10S203/19
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3084149A
Cited
US2767133A
Cited
US2984988A
Cited
US2872936A
Cited
US2933900A
Cited
US2900312A
Cited
US3139391A
Cited
US3212997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |