US3231089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filters
Assignee: Fram Corp
•
Filing: 1963-01-24
•
Granted: 1966-01-25
•
Expires: 1983-01-24
Abstract
No abstract record available.
Inventors
- 👤 Donald I Thornton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:34
CPC Classifications
B; B01; B01D; B01D27/00; B01D27/10; B01D27/08; B01D27/103; B01D27/106; B01D46/00; B01D46/0039; B01D46/0041; B01D46/0043; B01D46/0084; B01D46/0089; B01D46/24; B01D46/2403; B01D46/2411; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1402; F16K17/00; F16K17/02; B01D2271/00; B01D2271/02; F16K15/144; Y; Y10; Y10S; Y10S210/00; Y10S210/17; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7843; Y10T137/7859; Y10T137/7861
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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |