US2953249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter and dehydrator
Assignee: Bowser Inc
•
Filing: 1955-03-01
•
Granted: 1960-09-20
•
Expires: 1975-03-01
Abstract
No abstract record available.
Inventors
- 👤 George J Topol
- 👤 Leslie B Baranowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/045; B01D17/08; B01D17/10; Y; Y10; Y10S; Y10S210/00; Y10S210/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2269725A
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US2426405A
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US2651417A
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US2707563A
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US2548400A
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US2725986A
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US2657808A
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US2692686A
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US2800232A
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US2748949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |