US2666309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible dustpan
Assignee: Individual
•
Filing: 1950-04-04
•
Granted: 1954-01-19
•
Expires: 1970-04-04
Abstract
No abstract record available.
Inventors
- 👤 Rolf L Anderson
- 👤 Otto F Blom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:28
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/50; A47L13/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234644A
Cited
US256150A
Cited
US1011613A
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US996341A
Cited
US1106282A
Cited
US1155178A
Cited
US1270340A
Cited
US2265551A
Cited
US2331971A
Cited
US2475619A
Cited
US2583154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |