US2460309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel structural unit
Assignee: John B. Pierce Laboratory
•
Filing: 1942-11-19
•
Granted: 1949-02-01
•
Expires: 1962-11-19
Abstract
No abstract record available.
Inventors
- 👤 George M Rapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:57
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/288; Y; Y10; Y10S; Y10S52/00; Y10S52/07; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/166; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24909
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB171417A
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US1589512A
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US1709035A
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US1817022A
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US1831897A
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US2067312A
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US2105613A
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US2152190A
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US2122696A
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US2205534A
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US2305684A
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US2310442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |