Patent US3456860A successfully refreshed from Google Patents.
US3456860A
Expired / Lapsed
US
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Double wall cup
Assignee: Dart Container Corp
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Filing: 1968-01-09
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Granted: 1969-07-22
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Expires: 1988-01-09
Abstract
No abstract record available.
Inventors
- 👤 William L Janninck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:22
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0055; A47J41/0072; A47J41/0077; B; B65; B65D; B65D81/00; B65D81/38; B65D81/3865; B65D81/3869; Y; Y10; Y10S; Y10S220/00; Y10S220/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE25618E
Cited
US3079027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |