Patent US3893173A successfully refreshed from Google Patents.
Patent US1730713A successfully refreshed from Google Patents.
US1730713A
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Plaster and mortar mixer
Assignee: Individual
•
Filing: 1928-03-22
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Granted: 1929-10-08
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Expires: 1948-03-22
Abstract
No abstract record available.
Inventors
- 👤 Alexander John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:02
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/08; B28C5/0806; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/13; B01F27/60; B01F27/61; B01F27/70; B01F35/00; B01F35/40; B01F35/41; B01F35/411; B01F35/4111; B28C5/10; B28C5/12; B01F35/30; B01F2035/35; B01F2035/352
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) | 1932-10-07 | 1933-04-08 | 1933-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-10-07 | 1937-04-08 | 1937-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-10-07 | 1941-04-08 | 1941-10-08 | $7700.00 | Window Closed / Lapsed |