Patent US3579351A successfully refreshed from Google Patents.
US3579351A
Expired / Lapsed
US
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Coffee powder package
Assignee: FIRM WILHELM KUHN
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Filing: 1969-01-17
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Granted: 1971-05-18
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Expires: 1989-01-17
Abstract
Abstract A FILTER PAPER BAG HAS AN OPEN TOP END AND IS PARTLY FILLED WITH COFFEE POWDER. A FLANGED PLATE IS SECURED TO SAID OPEN TOP END AND LATERALLY OUTWARDLY PROTRUDES THEREFROM AND IS FORMED WITH AN APERTURE WHICH COMMUNICATES WITH THE INTERIOR OF SAID BAG. A COVER CLOSES THE APERTURE. THE FILTER PAPER BAG IS ENTIRELY ENCLOSED BY AN AROMA-TIGHT WRAPPER BAG.
Inventors
- 👤 Hans Wege
- 👤 Eric Gast
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:54
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/808; B65D85/8043; B65D85/8061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |