Patent US3013572A successfully refreshed from Google Patents.
US3013572A
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Dry cleaning devices
Assignee: DUNN ENGINEERING ASSOCIATES IN
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Filing: 1957-05-17
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Granted: 1961-12-19
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Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 Abbott W Lahti
- 👤 Joseph M Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:23
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/005; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/034; Y10T137/2496; Y10T137/2499; Y10T137/2509
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE160253C
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US2174793A
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CA530043A
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CA530617A
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US1830333A
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US2173233A
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US2552088A
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US2679027A
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US2682168A
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US2715833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |