US3607302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee bag
Assignee: Individual
•
Filing: 1969-12-16
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Granted: 1971-09-21
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Expires: 1989-12-16
Abstract
Abstract A coffee bag for brewing an individual cup of coffee, the device comprising a tea baglike assembly, consisting of a porous paper envelop containing a premeasured amount of ground coffee beans, and the envelop being attached to one end of a string for conveniently dipping into a cup of boiling hot water.
Inventors
- 👤 Russell C Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/70; B65D85/804; B65D85/808
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
33 words
A coffee bag as in claim 1 wherein the envelope is trapezoidal when collapsed and expands to a conical configuration with a smaller lower aperture when opened, immersed and pulled through brewing water.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |