US2514809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dustless heavy-duty suction cleaner
Assignee: Individual
•
Filing: 1945-12-05
•
Granted: 1950-07-11
•
Expires: 1965-12-05
Abstract
No abstract record available.
Inventors
- 👤 Soergel Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:09
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/00; A47L9/10; A47L9/102; A47L9/18; A47L9/181
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US67576A
Cited
US608397A
Cited
US2266075A
Cited
US744645A
Cited
US971044A
Cited
US978739A
Cited
US980977A
Cited
US1448322A
Cited
US1458720A
Cited
US1904667A
Cited
US2314986A
Cited
GB555647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |