US1552553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic dust collecting and conveying apparatus
Assignee: Individual
•
Filing: 1923-09-15
•
Granted: 1925-09-08
•
Expires: 1943-09-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Georgia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:00
CPC Classifications
B; B23; B23D; B23D47/00; B23D47/04; B23D47/045; B23D59/00; B23D59/006; B23D59/0064; B23Q; B23Q11/00; B23Q11/0042; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/185; Y; Y10; Y10S; Y10S29/00; Y10S29/056; Y10S29/06; Y10S29/086
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) | 1928-09-07 | 1929-03-09 | 1929-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-09-07 | 1933-03-09 | 1933-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-09-07 | 1937-03-09 | 1937-09-08 | $7700.00 | Window Closed / Lapsed |