US2835393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter elements
Assignee: Motors Liquidation Co
•
Filing: 1954-09-27
•
Granted: 1958-05-20
•
Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Buckman Kenneth Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:36
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/22; B01D25/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE72754C
Cited
GB352038A
Cited
US2271662A
Cited
GB535153A
Cited
US2339703A
Cited
US2464870A
Cited
US2427862A
Cited
US2525330A
Cited
US2507818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |