US2974842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Egg carton
Assignee: Diamond National Corp
•
Filing: 1958-05-13
•
Granted: 1961-03-14
•
Expires: 1978-05-13
Abstract
No abstract record available.
Inventors
- 👤 Richard F Reifers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:48
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B65D85/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US931637A
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US1028253A
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US2004449A
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GB486367A
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US2428384A
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US2578739A
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US2843304A
Cited
DE937938C
Cited
US2873057A
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CH291074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |