US1370256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet-sweeper brush
Assignee: Individual
•
Filing: 1920-08-21
•
Granted: 1921-03-01
•
Expires: 1940-08-21
Abstract
No abstract record available.
Inventors
- 👤 James P N Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:31
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4041; A47L11/32; A47L11/33
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) | 1924-02-29 | 1924-08-30 | 1925-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-02-29 | 1928-08-30 | 1929-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-02-29 | 1932-08-30 | 1933-03-01 | $7700.00 | Window Closed / Lapsed |