US2553748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power sweeper broom
Assignee: Elgin Sweeper Co
•
Filing: 1945-12-22
•
Granted: 1951-05-22
•
Expires: 1965-12-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Carlson
- 👤 Carl W Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:04
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/001; A46B13/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US656761A
Cited
US1168849A
Cited
US1126531A
Cited
US1199780A
Cited
US1963045A
Cited
US2045373A
Cited
US2349643A
Cited
US2332490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |