US3011190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floor machine for hazardous atmospheres
Assignee: HILD FLOOR MACHINE CO
•
Filing: 1957-05-22
•
Granted: 1961-12-05
•
Expires: 1977-05-22
Abstract
No abstract record available.
Inventors
- 👤 Bernard J Wilke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:01
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/02; A47L11/10; A47L11/14; A47L11/16; A47L11/162; A47L11/4002; A47L11/4036; A47L11/4038; A47L11/4052; A47L11/4058; A47L11/4063; A47L11/4069; A47L11/4072; A47L11/4075; A47L11/4077; A47L11/408; A47L11/4088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733465A
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US735797A
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US1847323A
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US1763365A
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US1930117A
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US1931483A
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US2221315A
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US2256983A
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US2426315A
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US2591093A
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US2633519A
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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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |