US4602557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid brewing cup
Assignee: Individual
•
Filing: 1984-07-13
•
Granted: 1986-07-29
•
Expires: 2004-07-13
Abstract
Abstract The improved cup comprises a closed bottom and connected closed sidewall defining a central brewing liquid-retaining space and an open top. The liquid may be, for example, tea, herb tea, etc. The upper end of the sidewall defines an exposed rim having a brew bag string-retaining notch extending down therein. The notch prevents the entire length of the bag string and the bag string end tab from being inadvertently drawn down into the cup liquid during and after brewing of the liquid. Thus, there is no occasion to fish a wet bag string and tab from the liquid. Instead, the tab remains dry and accessible outside the cup, thus readily available for withdrawing the bag from the cup when desired. The notch can also serve as a vent hole for the cup when the cup is inverted after washing. The notch can be of any suitable string- and tab-retaining configuration. The portion of the rim defining it can be elastomeric and of crushable foamed plastic or the like so as to releasably grip the string and accommodate strings of various sizes. The cup is simple, inexpensive, durable and efficient.
Inventors
- 👤 John Yip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/12; A47G19/14; A47G19/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
An improved liquid brewing cup, said cup comprising, in combination: (a) a closed bottom; (b) a closed upraised sidewall secured to and defining with said bottom a central brewing liquid-receiving space, the upper end of said sidewall defining an exposed rim; and (c) an open top, said rim including means defining a brew bag string-receiving and retaining notch to prevent inadvertent passage of the length of said string and the bag string tab connected thereto into said brewing liquid space during pouring, brewing, stirring and drinking of liquid in said cup, said notch defining means including a lining surface of flexible, resilient, memory-retaining elastomeric material for releasably restraining the string in order to suspend the attached brew bag at a selected position within the cup above the bottom thereof.
Claim 2
Dependent Claim
129 words
An improved liquid brewing cup, said cup comprising, in combination: (a) a closed bottom; (b) a closed upraised sidewall secured to and defining with said bottom a central brewing liquid-receiving space, the upper end of said sidewall defining an exposed rim; and (c) an open top, said rim including means defining a brew bag string-receiving and retaining notch to prevent inadvertent passage of the length of said string and the bag string tab connected thereto into said brewing liquid space during pouring, brewing, stirring and drinking of liquid in said cup, said notch defining means including a lining surface of flexible, resilient, memory-retaining elastomeric material for releasably restraining the string in order to suspend the attached brew bag at a selected position within the cup above the bottom thereof.
Claim 3
Dependent Claim
33 words
The improved cup of claim 1 wherein said cup is a tea cup and wherein said notch has a generally vertical component which serves as a vent hole when said cup is inverted.
Claim 4
Dependent Claim
22 words
The improved cup of claim 1 wherein said cup is a tea cup and wherein said notch has a diagonal string-receiving opening.
Claim 5
Dependent Claim
57 words
The improved cup of claim 1 wherein said notch has a narrow upper portion and an expanded lower portion, said upper portion being sufficiently narrow relative to the thickness of a selected brew bag string as to permit the string to slide through said upper portion only upon the application of sufficient force to deform said portion.
Claim 6
Dependent Claim
28 words
The improved cup of claim 4 wherein said means defining said notch is readily deformable to accommodate bag strings of various diameters and to releasably grip said strings.
Claim 7
Dependent Claim
21 words
The improved cup of claim 5 wherein said cup is a tea cup comprising foamed plastic, including said notch-defining rim portion.
Claim 8
Dependent Claim
23 words
The improved cup of claim 1 wherein said restraining means comprises a V-shaped notch with converging side surfaces for frictionally engaging said string.
Claim 9
Dependent Claim
147 words
An improved liquid brewing cup, said cup comprising, in combination: (a) a closed bottom; (b) a closed upraised sidewall secured to and defining with said bottom a central brewing liquid-receiving space, the upper end of said sidewall defining an exposed rim; and (c) an open top, said rim including means defining a brew bag string-receiving and retaining notch to prevent inadvertent passage of the length of said string and the bag string tab connected thereto into said brewing liquid space during pouring, brewing, stirring and drinking of liquid in said cup, said notch defining means including means for releasably restraining the string in order to suspend the attached brew bag at a selected position within the cup above the bottom thereof, said restraining means comprising an insert positioned within the notch, said insert being formed of flexible, resilient memory-retaining elastomeric material for releasably gripping the bag string.
Claim 10
Dependent Claim
147 words
An improved liquid brewing cup, said cup comprising, in combination: (a) a closed bottom; (b) a closed upraised sidewall secured to and defining with said bottom a central brewing liquid-receiving space, the upper end of said sidewall defining an exposed rim; and (c) an open top, said rim including means defining a brew bag string-receiving and retaining notch to prevent inadvertent passage of the length of said string and the bag string tab connected thereto into said brewing liquid space during pouring, brewing, stirring and drinking of liquid in said cup, said notch defining means including means for releasably restraining the string in order to suspend the attached brew bag at a selected position within the cup above the bottom thereof, said restraining means comprising an insert positioned within the notch, said insert being formed of flexible, resilient memory-retaining elastomeric material for releasably gripping the bag string.
References Cited (Backward Citations)
US1748297A
Cited
US1287288A
Cited
US1651485A
Cited
US1665080A
Cited
US1702243A
Cited
US1886415A
Cited
US2284087A
Cited
US2328599A
Cited
US2334533A
Cited
US2530124A
Cited
US2879613A
Cited
US2889035A
Cited
GB931533A
Cited
US3237550A
Cited
US3429254A
Cited
US3785794A
Cited
US3705659A
Cited
US3733021A
Cited
US3895118A
Cited
US3899599A
Cited
US4141997A
Cited
US4193494A
Cited
US4220079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-28 | 1990-01-27 | 1990-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-28 | 1994-01-27 | 1994-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-28 | 1998-01-27 | 1998-07-29 | $7700.00 | Window Closed / Lapsed |