US3457339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making end capped filter elements
Assignee: Pall Corp
•
Filing: 1965-12-08
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Granted: 1969-07-22
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Expires: 1985-12-08
Abstract
No abstract record available.
Inventors
- 👤 David B Pall
- 👤 Tadas K Jasaitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:32
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/349; B01; B01D; B01D29/00; B01D29/11; B01D29/111; B01D29/13; B01D29/15; B01D29/21; B01D63/00; B01D63/06; B01D63/061; B01D65/00; B01D65/003; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/78; B29C65/7841; B29C65/7858; B29C65/7876; B29C66/003; B29C66/05; B29C66/10; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/54; B29C66/543; B29C66/5432; B29C66/545; B29C66/61; B29C66/612; B29C66/70; B29C66/74; B01D2201/00; B01D2201/29; B01D2201/291; B01D2201/293; B29C66/303; B29C66/3032; B29C66/30325; B29C66/30326; B29C66/71; B29C66/72; B29C66/729; B29C66/7294; B29C66/742; B29K; B29K2311/00; B29K2311/10; B29K2313/00; B29K2709/00; B29K2709/08; B29K2709/12; B29K2711/00; B29K2711/12; B29L; B29L2031/00; B29L2031/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732031A
Cited
US3013667A
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US2962121A
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US3082587A
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US3081495A
Cited
US3308225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |