Patent US3042076A successfully refreshed from Google Patents.
US3042076A
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Filter signal device
Assignee: Purolator Products Inc
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Filing: 1959-01-27
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Granted: 1962-07-03
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Expires: 1979-01-27
Abstract
No abstract record available.
Inventors
- 👤 William J Scavuzzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:36
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0084; B01D46/0086; B01D35/00; B01D35/14; B01D35/143; B01D46/0087; B01D46/24; B01D46/2403; B01D46/2411; F; F02; F02M; F02M35/00; F02M35/02; F02M35/08; F02M35/09; Y; Y10; Y10S; Y10S116/00; Y10S116/42; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |