US2789839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring detent engaging means for carpet sweeper sectional handle
Assignee: Bissell Homecare Inc
•
Filing: 1952-08-27
•
Granted: 1957-04-23
•
Expires: 1972-08-27
Abstract
No abstract record available.
Inventors
- 👤 Werner E Siebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:14
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; B; B25; B25G; B25G1/00; B25G1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US788488A
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US839297A
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US1239223A
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US1267076A
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US1297591A
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US1301565A
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US1707230A
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US1665988A
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US1851404A
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US2108003A
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US2112247A
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US2212679A
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US2564915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |