US2711828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic fabric filter
Assignee: Old Carco LLC
•
Filing: 1949-09-30
•
Granted: 1955-06-28
•
Expires: 1969-09-30
Abstract
No abstract record available.
Inventors
- 👤 Edmond F Webb
- 👤 Andre M Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:23
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/08; B01D39/083; B01D29/00; B01D29/01; B01D29/012; B01D29/05; B01D29/50; B01D29/56; B01D29/58; B01D39/10; B01D2239/00; B01D2239/06; B01D2239/065; B01D2239/0654; B01D2239/08; B01D2239/083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB476372A
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US2297729A
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US2333618A
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US2425388A
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US2423547A
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US2556722A
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US2521984A
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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) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |