US2906371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust bag for dust filter
Assignee: W W SLY Manufacturing Co
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Filing: 1957-10-28
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Granted: 1959-09-29
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Expires: 1977-10-28
Abstract
No abstract record available.
Inventors
- 👤 Allen H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:18
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/026; B01D46/04; B01D46/66; B01D46/70; F; F24; F24F; F24F13/00; F24F13/28; B01D2265/00; B01D2265/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |