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US2464523A
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Assignee: Celotex Corp
•
Filing: 1944-10-04
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Granted: 1949-03-15
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Expires: 1964-10-04
Abstract
No abstract record available.
Inventors
- 👤 Carl G Muench
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:02
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/10; B28C5/12; B28C5/1238; B28C5/1246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1497957A
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US1670677A
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US1995540A
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US2069078A
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US2125046A
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US2352553A
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US2309306A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |