US3364658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-phase separation unit
Assignee: R M HOLLINGSHEAD CORP
•
Filing: 1966-09-01
•
Granted: 1968-01-23
•
Expires: 1986-09-01
Abstract
No abstract record available.
Inventors
- 👤 John M Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:51
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0027; B01D46/003; B01D46/0031; B01D17/00; B01D17/08; B01D17/10; B01D46/0039; B01D46/0041; B01D46/0043; B01D46/24; B01D46/2403; B01D46/2411; B01D46/42; B01D46/4227; B01D46/4263; B01D46/44; B01D46/448; B60; B60T; B60T17/00; B60T17/002; B60T17/004; F; F16; F16T; F16T1/00; F16T1/38; Y; Y10; Y10S; Y10S55/00; Y10S55/17
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |