US2057071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound insulation and material therefor
Assignee: Reynolds Metals Co
•
Filing: 1934-03-28
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Granted: 1936-10-13
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Expires: 1954-03-28
Abstract
No abstract record available.
Inventors
- 👤 Robert P Stranahan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:07
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/86; E04B2001/8414; E04B2001/8457; E04B2001/8461; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24719; Y10T428/24942; Y10T428/2495; Y10T428/26; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/31504; Y10T428/31652; Y10T428/31656; Y10T428/31678; Y10T428/31717
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) | 1939-10-13 | 1940-04-13 | 1940-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-13 | 1944-04-13 | 1944-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-13 | 1948-04-13 | 1948-10-13 | $7700.00 | Window Closed / Lapsed |