Patent US1443449A successfully refreshed from Google Patents.
US1443449A
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US
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Dust-bag connector
Assignee: WISE MCCLUNG Manufacturing Co
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Filing: 1922-01-19
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Granted: 1923-01-30
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Expires: 1942-01-19
Abstract
No abstract record available.
Inventors
- 👤 William J Wise
- 👤 Thomas O Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:34
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427; Y; Y10; Y10S; Y10S285/00; Y10S285/91
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) | 1926-01-29 | 1926-07-31 | 1927-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-29 | 1930-07-31 | 1931-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-29 | 1934-07-31 | 1935-01-30 | $7700.00 | Window Closed / Lapsed |