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US3433361A
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US
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Coolant filter combination
Assignee: Sundstrand Corp
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Filing: 1967-05-31
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Granted: 1969-03-18
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Expires: 1987-05-31
Abstract
No abstract record available.
Inventors
- 👤 Lewis B Ades
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:08
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/26; B01D21/267; B01D21/0012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1775233A
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US2378632A
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US2865509A
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US2861688A
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US2954871A
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US2999597A
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US3057476A
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US3261467A
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US3289775A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |