US3388801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spill proof coupling and filter unit
Assignee: Motors Liquidation Co
•
Filing: 1965-03-19
•
Granted: 1968-06-18
•
Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Richard W Boyd
- 👤 Russell K Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:49
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/02; B01D35/14; B01D35/153; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949; Y10T137/87957
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR863055A
Cited
US2569243A
Cited
US2706646A
Cited
US2730380A
Cited
US2793752A
Cited
US3327858A
Cited
US3300050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |