US2979062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power washing apparatus
Assignee: Ajem Laboratories Inc
•
Filing: 1954-11-09
•
Granted: 1961-04-11
•
Expires: 1974-11-09
Abstract
No abstract record available.
Inventors
- 👤 Umbricht Emil
- 👤 Evans Dewey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:31
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/02; B08B3/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1684827A
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US1827553A
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US1785352A
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US1780772A
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US2073521A
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US2239073A
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US2399205A
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US2338081A
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US2522310A
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US2675011A
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US2716989A
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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) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |