US4412644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spill resistant disposable paper drinking cup
Assignee: Individual
•
Filing: 1981-07-20
•
Granted: 1983-11-01
•
Expires: 2001-07-20
Abstract
Abstract A disposable paper drinking cup that flares outwardly downwardly, so as to form a wide, non-tipping base for standing upon, and an opening upon its narrow upper end for dispensing a beverage therefrom, a reclosable tab on the upper end for the opening, and a pair of handles along a side of the cup for holding in a hand.
Inventors
- 👤 William C. La Fever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:32
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/28; B65D25/2835; B65D25/2838; B65D3/00; B65D3/02; B65D3/06; B65D3/26; B65D3/268
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
195 words
A spill resistant, invertable, disposable paper drinking cup, comprising in combination, a side wall rolled around a small sized end wall at one end thereof, and a spaced apart larger sized open end at the other end thereof, an opening formed in said end wall, reusable tab means for covering said opening, sealing means for initially sealing said tab means over said opening in a leak proof manner, means for retaining said tab means in a closed condition over said opening after being unsealed, cover means for closing said open end, and additional sealing means for sealing said cover means to said open end in a leak proof manner, whereby said cup can be used with the open end upward prior to unsealing of the tab whereby said end walls forms the bottom of the cup, and said cup can also be used in an inverted manner by sealing of said cover means to the open end and unsealing said tab means to utilize said opening for access to the cup, whereby said cover means forms the bottom of the cup and the cup has an outward flare in a downward direction for greater stability.
Claim 2
Dependent Claim
195 words
A spill resistant, invertable, disposable paper drinking cup, comprising in combination, a side wall rolled around a small sized end wall at one end thereof, and a spaced apart larger sized open end at the other end thereof, an opening formed in said end wall, reusable tab means for covering said opening, sealing means for initially sealing said tab means over said opening in a leak proof manner, means for retaining said tab means in a closed condition over said opening after being unsealed, cover means for closing said open end, and additional sealing means for sealing said cover means to said open end in a leak proof manner, whereby said cup can be used with the open end upward prior to unsealing of the tab whereby said end walls forms the bottom of the cup, and said cup can also be used in an inverted manner by sealing of said cover means to the open end and unsealing said tab means to utilize said opening for access to the cup, whereby said cover means forms the bottom of the cup and the cup has an outward flare in a downward direction for greater stability.
Claim 3
Dependent Claim
24 words
The combination as set forth in claim 1, wherein a pair of handles on said side wall are selectively parallel apart or held together.
Claim 4
Dependent Claim
39 words
The combination as in claim 1 wherein said additional sealing means is operative upon placement of said cover means on said open end whereby once the cover means is placed on the open end it can not be removed.
Claim 5
Dependent Claim
59 words
The combination as in claim 1, wherein said side wall extends beyond said end wall to form an inwardly tapered skirt portion, and the peripheral edge of said tab means has a curvature corresponding to the shape of the side wall, whereby the tab means is retained in a closed position by the frictional engagement with said skirt portion.
Claim 6
Dependent Claim
27 words
The combination as set forth in claim 4, comprising a tongue member on said tab means for facilitation lifting of said tab means to expose said opening.
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) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |