Patent US3040362A successfully refreshed from Google Patents.
US3040362A
Expired / Lapsed
US
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Suction cleaning apparatus
Assignee: Hoover Co
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Filing: 1958-08-08
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Granted: 1962-06-26
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Expires: 1978-08-08
Abstract
No abstract record available.
Inventors
- 👤 Don C Krammes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:29
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/24; A47L11/00; A47L11/29; A47L11/30; A47L11/40; A47L11/4013; A47L11/4016; A47L11/4036; A47L11/4044; A47L11/4075; A47L11/408; A47L11/4083; A47L11/4088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1057347A
Cited
US1687283A
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US1979797A
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US2137944A
Cited
GB557683A
Cited
US2531370A
Cited
US2607068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |