Patent US3400517A successfully refreshed from Google Patents.
US3400517A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dust collector
Assignee: W W SLY Manufacturing Co
•
Filing: 1966-07-25
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Granted: 1968-09-10
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Carl R Sare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:28
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/0002; B01D46/0005; B01D46/56; B01D46/58; B01D46/66; B01D46/70; B01D46/71; B01D46/90; B01D2265/00; B01D2265/06; B01D2271/00; B01D2271/02; B01D2271/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1693717A
Cited
US1747131A
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US1914370A
Cited
US2867289A
Cited
US2906371A
Cited
US3088260A
Cited
US3047994A
Cited
US3097939A
Cited
GB917319A
Cited
GB943100A
Cited
US3145169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |