US2031900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical wall surfacing
Assignee: Individual
•
Filing: 1933-04-07
•
Granted: 1936-02-25
•
Expires: 1953-04-07
Abstract
No abstract record available.
Inventors
- 👤 Edward J Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:01
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; B; B28; B28B; B28B19/00; B28B19/003; E04B2001/8423; E04B2001/8452; Y; Y10; Y10S; Y10S264/00; Y10S264/57; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/31504; Y10T428/31678; Y10T428/31703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-02-24 | 1939-08-26 | 1940-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-24 | 1943-08-26 | 1944-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-24 | 1947-08-26 | 1948-02-25 | $7700.00 | Window Closed / Lapsed |