US2964129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for shaking filter bags
Assignee: Individual
•
Filing: 1959-04-06
•
Granted: 1960-12-13
•
Expires: 1979-04-06
Abstract
No abstract record available.
Inventors
- 👤 Armand L Labbe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:30
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/42; B01D46/4272; B01D46/66; B01D46/74; B01D46/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732912A
Cited
US1153751A
Cited
DE401186C
Cited
GB282849A
Cited
DE610391C
Cited
GB519180A
Cited
US2682316A
Cited
US2854091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |