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US2052324A
Expired / Lapsed
US
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Art of ceramic kilning and making building units
Assignee: Individual
•
Filing: 1933-02-25
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Granted: 1936-08-25
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Expires: 1953-02-25
Abstract
No abstract record available.
Inventors
- 👤 Homer G Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:29
CPC Classifications
F; F27; F27B; F27B9/00; C; C04; C04B; C04B38/00; C04B38/06; C04B38/063; C04B38/0635; C04B38/064; F27B9/14; F27B9/20; F27B9/24; F27B9/243; F27B9/30; F27B9/38; F27B9/06; F27B9/062; F27B9/063; F27D; F27D13/00; F27D2013/007; F27M; F27M2001/00; F27M2001/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-08-25 | 1940-02-24 | 1940-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-25 | 1944-02-24 | 1944-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-25 | 1948-02-24 | 1948-08-25 | $7700.00 | Window Closed / Lapsed |