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US2981580A
Expired / Lapsed
US
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Counter construction
Assignee: Congoleum Industries Inc
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Filing: 1958-12-08
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Granted: 1961-04-25
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Expires: 1978-12-08
Abstract
No abstract record available.
Inventors
- 👤 Herman E Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:42
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/32; E03C1/322; A; A47; A47B; A47B77/00; A47B77/02; A47B77/022; A47B2077/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2134999A
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US2532769A
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US2635308A
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US2582816A
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US2626846A
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US2648370A
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US2570850A
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US2646326A
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US2721333A
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US2821754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |