Patent US2482882A successfully refreshed from Google Patents.
US2482882A
Expired / Lapsed
US
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Self-cleaning door mat
Assignee: Individual
•
Filing: 1945-06-11
•
Granted: 1949-09-27
•
Expires: 1965-06-11
Abstract
No abstract record available.
Inventors
- 👤 Carl O Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:07
CPC Classifications
A; A47; A47L; A47L23/00; A47L23/22; A47L23/26; A47L23/263
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |