Patent US1351561A successfully refreshed from Google Patents.
US1351561A
Expired / Lapsed
US
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Dust-collecting bag for cleaning apparatus
Assignee: Individual
•
Filing: 1920-04-08
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Granted: 1920-08-31
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Expires: 1940-04-08
Abstract
No abstract record available.
Inventors
- 👤 William W Farnsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:40
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/149; Y; Y10; Y10S; Y10S15/00; Y10S15/08
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) | 1923-08-31 | 1924-03-01 | 1924-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-31 | 1928-03-01 | 1928-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-31 | 1932-03-01 | 1932-08-31 | $7700.00 | Window Closed / Lapsed |