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US4948009A
Expired / Lapsed
US
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Straw-insertable lid for paper cup
Assignee: Individual
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Filing: 1989-12-28
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Granted: 1990-08-14
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Expires: 2009-12-28
Abstract
Abstract Disclosed in a straw-insertable lid for a paper cup which is placed on an upper end of a paper cup in which a beverage such as tea, coffe, a soft drink, fruit juice, or the like, a sherbert-like beverage of any of these beverages, or the like is accommodated singly or together with crushed ice so as to allow the beverage to be drunk by inserting a straw through the straw-inserting slit provided in the top plate portion. The upper lid is formed of natural rubber, and a protruding outer ring is provided on the top plate portion around the slit. As a result, when the lids are disposed of by being dumped as rubbish after use, the lids easily decompose, thereby preventing the dumped lids from constituting a source of environmental destruction. At the same time, when the straw is inserted through the slit, the protruding annuular ring prevents the slit from becoming easily being ripped large.
Inventors
- 👤 Takashi Sawatani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:18
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/32; A23G9/42; A23F; A23F5/00; A23F5/24; A23F5/243; A23G9/04; A23G9/045; B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D2231/00; B65D2231/02; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00305; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00638; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796; Y; Y10; Y10S; Y10S215/00; Y10S215/902
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
170 words
A straw-insertable lid for a paper-cup, comprising: a top plate portion (5), with an upper and a lower surface, for covering an opening (4) at an upper end of a paper cup (3) in which a beverage (2) such as tea, coffee, a soft drink fruit juice, or the like, a sherbet-like beverage of any of these beverages, or the like can be accomodated singly or together with crushed ice (1); a peripheral side wall portion (7) which is disposed around an outer peripheral edge of said top plate portion (5) in such a manner as to project downward and is fitted with an outer periphery of a rim (6) of said paper cup (3); at least one slit (9) for the insertion of a straw (8) therethrough and provided in said top plate portion (5); and a protruding outer ring (10) formed on both said upper and lower surfaces of said top plate portion (5) around said slit (9); wherein said lid is formed of natural rubber including Latex.
Claim 2
Dependent Claim
170 words
A straw-insertable lid for a paper-cup, comprising: a top plate portion (5), with an upper and a lower surface, for covering an opening (4) at an upper end of a paper cup (3) in which a beverage (2) such as tea, coffee, a soft drink fruit juice, or the like, a sherbet-like beverage of any of these beverages, or the like can be accomodated singly or together with crushed ice (1); a peripheral side wall portion (7) which is disposed around an outer peripheral edge of said top plate portion (5) in such a manner as to project downward and is fitted with an outer periphery of a rim (6) of said paper cup (3); at least one slit (9) for the insertion of a straw (8) therethrough and provided in said top plate portion (5); and a protruding outer ring (10) formed on both said upper and lower surfaces of said top plate portion (5) around said slit (9); wherein said lid is formed of natural rubber including Latex.
Claim 3
Dependent Claim
24 words
A straw-insertable lid for a paper cup according to claim 1 wherein said slit for insertion is formed into a configuration of a cross.
Claim 4
Dependent Claim
48 words
A straw-insertable lid for a paper cup according to claim 2, further comprising an annular protrusion (11) formed on an intermediate portion of an inner periphery of said peripheral side wall portion (7) in such a manner as to tuck said rim (6) of said paper cup (3).
Claim 5
Dependent Claim
27 words
A straw-insertable lid for a paper cup according to claim 2, further comprising an air valve formed at an appropriate position in said top plate portion (5).
Claim 6
Dependent Claim
53 words
A straw-insertable lid for a paper cup according to claim 4, wherein said air valve (12) is formed by a recessed portion (13) provided by concaving a portion of said top plate portion (5) into a semispherical shape and a slit (14) for the influx of air provided in said recessed portion (13).
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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) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |