US2686045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duster apparatus
Assignee: Individual
•
Filing: 1949-06-28
•
Granted: 1954-08-10
•
Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Jonas J Byberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:27
CPC Classifications
A; A01; A01C; A01C15/00; A01C15/005; A01C15/006; A01C15/007; A01M; A01M9/00; A01M9/0084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US364503A
Cited
US445821A
Cited
US1224082A
Cited
US1575072A
Cited
US1948021A
Cited
US2345063A
Cited
DK61777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |