US2973871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for different layers of cake
Assignee: Individual
•
Filing: 1957-10-14
•
Granted: 1961-03-07
•
Expires: 1977-10-14
Abstract
No abstract record available.
Inventors
- 👤 Wukowitz Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:27
CPC Classifications
A; A47; A47J; A47J47/00; A47J47/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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DE118425C
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US114718A
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US782612A
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US1609242A
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US1762805A
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US1823616A
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US1917564A
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US2791391A
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US2867248A
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US2880951A
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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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |