US2917761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Street sweeper hopper and lift mechanism
Assignee: Individual
•
Filing: 1956-03-08
•
Granted: 1959-12-22
•
Expires: 1976-03-08
Abstract
No abstract record available.
Inventors
- 👤 Burgdorff Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:10
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518716A
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US1224771A
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US1750829A
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US2199703A
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US2286245A
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US2314381A
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US2530720A
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US2505199A
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US2708280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |