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US2707792A
Expired / Lapsed
US
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Rotary brush for suction cleaners
Assignee: HENNEY MOTOR Co Inc
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Filing: 1950-11-24
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Granted: 1955-05-10
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Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Lyle G Waller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:17
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A46; A46B; A46B13/00; A46B13/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US648527A
Cited
US1425906A
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US1681453A
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US1961926A
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US1978489A
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FR838410A
Cited
CH218039A
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US2372404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |