US2931214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical tile
Assignee: Individual
•
Filing: 1953-09-14
•
Granted: 1960-04-05
•
Expires: 1973-09-14
Abstract
No abstract record available.
Inventors
- 👤 Maccaferri Mario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:38
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/8409; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6125; E04B2001/8263; E04B2001/8423; E04B2001/8433; E04B2001/8442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1554179A
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US1961374A
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US1918149A
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US1926679A
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US1978632A
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US1929751A
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US2021359A
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US2014749A
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US2165101A
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US2156149A
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US2151597A
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US2271871A
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US2362859A
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US2367790A
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US2637995A
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US2755882A
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US2770965A
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |