Patent US3053031A successfully refreshed from Google Patents.
US3053031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic cleaning of dust filters
Assignee: Pangborn Corp
•
Filing: 1959-10-19
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Granted: 1962-09-11
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Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 Walter O Vedder
- 👤 William F Gibby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:08
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/02; B01D46/04; B01D46/66; B01D46/70; B01D46/71; B01D46/74; B01D46/76; B01D46/762; B01D2273/00; B01D2273/24; Y; Y10; Y10S; Y10S116/00; Y10S116/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2014298A
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US2167236A
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US2746561A
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US2769506A
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US2781104A
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US2845140A
Cited
US2854091A
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US2962120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |