US2634207A
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
2026-10-25 11:01
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/02; C04B14/04; C04B14/14; C04B14/18; C04B14/185; C04B30/00; C04B30/02; D; D21; D21H; D21H17/00; D21H17/63; D21H17/67; D21H17/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US436733A
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US1574208A
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US1905541A
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US2051423A
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US2225100A
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US2300137A
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US2378193A
Cited
US2388060A
Cited
US2542721A
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 |