US2442347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound and vibration damping structure
Assignee: Individual
•
Filing: 1944-08-26
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Granted: 1948-06-01
•
Expires: 1964-08-26
Abstract
No abstract record available.
Inventors
- 👤 Harry N Eklund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:16
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B2001/8457; E04B2001/8461; E04B2001/8466; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24099; Y10T428/24107; Y10T428/249921; Y10T428/249953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1265841A
Cited
GB236000A
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US1974951A
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US2014694A
Cited
US2106457A
Cited
US2126711A
Cited
US2373738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |