US3012631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Purolator Products Inc
•
Filing: 1958-09-29
•
Granted: 1961-12-12
•
Expires: 1978-09-29
Abstract
No abstract record available.
Inventors
- 👤 Kaser Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
F; F01; F01M; F01M13/00; F01M13/0033; Y; Y10; Y10S; Y10S55/00; Y10S55/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1960657A
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US2019241A
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US2122111A
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US2171752A
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US2574053A
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GB660864A
Cited
US2562331A
Cited
US2784132A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |