US2634208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building board
Assignee: GREAT LAKES CARBON Corp
•
Filing: 1947-12-31
•
Granted: 1953-04-07
•
Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 Miscall Jack
- 👤 Chester E Rahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
C; C04; C04B; C04B30/00; C04B30/02; C04B20/00; C04B20/10; C04B20/1018; C04B20/1029; C04B20/1044; C04B24/00; C04B24/24; C04B24/36; Y; Y10; Y10S; Y10S106/00; Y10S106/01; Y10S106/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1537949A
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US1722434A
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US1825869A
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US1905541A
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US1925584A
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US1978923A
Cited
US2388060A
Cited
US2542721A
Cited
US2501962A
Cited
US2501698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |