Patent US2464552A successfully refreshed from Google Patents.
US2464552A
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Combined blower and suction device
Assignee: BREUER ELECTRIC Manufacturing Co
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Filing: 1946-05-02
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Granted: 1949-03-15
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Expires: 1966-05-02
Abstract
No abstract record available.
Inventors
- 👤 Grant W Breuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:47
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/24; A47L7/00; A47L7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1703551A
Cited
US1646365A
Cited
US1781542A
Cited
US1821525A
Cited
US1777744A
Cited
US1869737A
Cited
US2021391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |