Patent US3521788A successfully refreshed from Google Patents.
US3521788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food container
Assignee: Solo Cup Operating Corp
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Filing: 1968-11-12
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Granted: 1970-07-28
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Expires: 1988-11-12
Abstract
No abstract record available.
Inventors
- 👤 Gerald J Kandel
- 👤 Paul H Carter
- 👤 Herbert M Bank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:44
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/38; B65D81/3865; B65D81/3867
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1693622A
Cited
FR833719A
Cited
US2420215A
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US2601767A
Cited
FR1044009A
Cited
US3067921A
Cited
US3013306A
Cited
US3094240A
Cited
US3353707A
Cited
US3375954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |