US3640727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coffee brewing packet
Assignee: Procter and Gamble Co
•
Filing: 1970-06-26
•
Granted: 1972-02-08
•
Expires: 1990-06-26
Abstract
Abstract A coffee packet, containing flaked coffee particles in a waterpermeable pouch, for brewing coffee is disclosed.
Inventors
- 👤 Merlyn R Heusinkveld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:48
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/10; A23F5/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
22 words
The coffee packet of claim 1 wherein said coffee flakes have a thickness of from about 0.0005 inch to about 0.03 inch.
Claim 2
Dependent Claim
15 words
forming a packet around said coffee flakes, said packet being formed from a water-permeable material.
Claim 3
Dependent Claim
40 words
The coffee packet of claim 2 wherein said water-permeable material is selected from the group consisting of woven and nonwoven fabrics and wherein said water-permeable material has an average pore size of from about 5 microns to about 1000 microns.
Claim 4
Dependent Claim
26 words
The coffee packet of claim 3 wherein said fabrics are comprised of fibers selected from the group consisting of natural and synthetic fibers and mixtures thereof.
Claim 5
Dependent Claim
14 words
The coffee packet of claim 4 wherein said fabrics contain a heat-sealable polymeric binder.
Claim 6
Dependent Claim
14 words
The coffee packet of claim 5 wherein said fabric is comprised of natural fibers.
Claim 7
Dependent Claim
19 words
The coffee packet of claim 6 wherein said fibers are selected from the group consisting of cotton and hemp.
Claim 8
Dependent Claim
14 words
The coffee packet of claim 5 wherein said fabric is comprised of synthetic fibers.
Claim 9
Dependent Claim
25 words
The coffee packet of claim 8 wherein said fibers are selected from the group consisting of rAyon, polypropylene, polyacrylic, polyester and nylon, and mixtures thereof.
Claim 10
Dependent Claim
22 words
The coffee packet of claim 9 wherein said fibers are selected from the group consisting of rayon and polypropylene and mixtures thereof.
Claim 11
Dependent Claim
14 words
The method for preparing the coffee packet of claim 1 comprising the steps of
Claim 12
Dependent Claim
52 words
The method of claim 11 wherein in step (1) the forming of the coffee flakes comprises the passing of roasted and ground coffee through a roll mill and wherein in step (2) the forming of the packet comprises heat sealing of a nonwoven fabric, said nonwoven fabric containing a heat-sealable polymeric binder.
References Cited (Backward Citations)
US1903362A
Cited
US2281320A
Cited
US2531594A
Cited
US3183096A
Cited
US3386834A
Cited
US3420675A
Cited
US3387553A
Cited
US3511666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |