Patent US5204880A successfully refreshed from Google Patents.
Patent US1497980A successfully refreshed from Google Patents.
US1497980A
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US
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Apparatus for making wall board
Assignee: GEORGE F ROGGE
•
Filing: 1922-12-18
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Granted: 1924-06-17
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Expires: 1942-12-18
Abstract
No abstract record available.
Inventors
- 👤 Robert J Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:38
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/12; B26; B26D; B26D5/00; B26D5/08; B26D5/16; B26F; B26F1/00; B26F1/02; B26F1/06; B26F1/08; Y; Y10; Y10S; Y10S264/00; Y10S264/70; Y10T; Y10T83/00; Y10T83/869; Y10T83/8737
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) | 1927-06-17 | 1927-12-17 | 1928-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-06-17 | 1931-12-17 | 1932-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-06-17 | 1935-12-17 | 1936-06-17 | $7700.00 | Window Closed / Lapsed |