US3240346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: NUCLEAR PRODUCTS CO
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Filing: 1961-11-06
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Granted: 1966-03-15
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Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Francis J Callahan
- 👤 Bernard J Gallagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:51
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/11; B01D29/31; B01D29/33; B01D35/00; B01D35/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A HIGH TEMPERATURE FLOW LINE FILTER STRUCTURE COMPRISING AN ELONGATED OUTER BODY HAVING PASSAGEWAY WITH A TAPERED INTERNAL SURFACE PORTION ADJACENT ONE END OF SAID BODY AND A THREADED PORTION ADJACENT THE OPPOSITE END OF SAID BODY, SAID TAPERED INTERNAL SURFACE PORTION HAVING ITS LARGER IAMETER CLOSER TO SAID THREADED PORTION THAN ITS SMALLER END, A CYLINDRICAL CUP-SHAPED FILTER ELEMENT HAVING A LIP TIGHTLY SEALED IN DIRECT ENGAGEMENT WITH SAID TAPERED INTERNAL SURFACE PORTION, AN INNER BODY HAVING A PASSAGEWAY AND AN OUTER SURFACE WITH A RADIALLY DIRECTED FLANGE PORTION AND A THREADED PORTION COOPERATING WITH THE THREADED PORTION OF THE OUTER BODY PASSAGEWAY, A METAL GASKET UNDER COMPRESSION BETWEEN THE FLANGE PORTION AND THE OUTER BODY, AND A SPRING UNDER COMPRESSION AGAINST AND BETWEEN THE FILTER ELEMENT AND THE INNER BODY.
References Cited (Backward Citations)
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Cited
US768951A
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US851194A
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US2378949A
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US2748802A
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US2819799A
Cited
US2932398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |