Patent DE436679C successfully refreshed from Google Patents.
Patent US3412415A successfully refreshed from Google Patents.
US3412415A
Expired / Lapsed
US
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Electrically driven floor tending and cleaning machines
Assignee: MESSRS VERTEX VERTRIEBSGMBH
•
Filing: 1965-06-03
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Granted: 1968-11-26
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Expires: 1985-06-03
Abstract
No abstract record available.
Inventors
- 👤 Brab Hubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:26
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4002; A47L11/4008; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/161; A47L11/4075; H; H02; H02K; H02K7/00; H02K7/10; H02K7/118; H01; H01H; H01H9/00; H01H9/02; H01H9/06; H01H2009/068; H01H3/00; H01H3/02; H01H3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2039860A
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US2785424A
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US2879528A
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US2958881A
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US2985800A
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US3058136A
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US3099028A
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US3286290A
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US3264674A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |