US3070232A
Expired / Lapsed
US
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Assignee: Purolator Products Inc
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Filing: 1959-10-01
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Granted: 1962-12-25
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Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Charles J Casaleggi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:26
CPC Classifications
B; B01; B01D; B01D27/00; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/216; B01D35/00; B01D35/14; B01D35/143; B01D35/147; Y; Y10; Y10S; Y10S116/00; Y10S116/42
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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |