Patent US2619685A successfully refreshed from Google Patents.
US2619685A
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Sound absorbent sheathing for walls or ceilings
Assignee: IND OSAKEYHTIO
•
Filing: 1946-06-11
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Granted: 1952-12-02
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Expires: 1966-06-11
Abstract
No abstract record available.
Inventors
- 👤 Kjaer Viggo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:14
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/001; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/8409; E04B2001/8423; E04B2001/8433; E04B2001/8442; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1554180A
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US1726500A
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US1833143A
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US2030157A
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US1992509A
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US1975002A
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US2390262A
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US2353045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |