US2537166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable height mechanism for floor cleaners
Assignee: Knapp Monarch Co
•
Filing: 1945-09-29
•
Granted: 1951-01-09
•
Expires: 1965-09-29
Abstract
No abstract record available.
Inventors
- 👤 Leland H Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:57
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4052; A47L11/4058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US654776A
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US896050A
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US1266638A
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US1448397A
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US1582692A
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US1482953A
Cited
US1485880A
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US2172911A
Cited
US2309214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |