Patent US3332435A successfully refreshed from Google Patents.
US3332435A
Expired / Lapsed
US
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Pumping arrangement for photocopy machine
Assignee: American Photocopy Equipment Co
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Filing: 1964-01-14
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Granted: 1967-07-25
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Expires: 1984-01-14
Abstract
No abstract record available.
Inventors
- 👤 Carl E Anderson
- 👤 Burton D Eisner
- 👤 George C Kent
- 👤 Leo D Sacre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:34
CPC Classifications
G; G03; G03D; G03D3/00; G03D3/02; G03D3/06; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/3185; Y10T137/8593; Y10T137/85954; Y10T137/86348
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
IN A LIQUID HANDLING ARRANGEMENT FOR A PHOTOCOPY MACHINE OR THE LIKE, THE COMBINATION COMPRISING A DEVELOPER TRAY HAVING A DIP TUBE, A LIQUID RESERVOIR HAVING A DIP TUBE, LIQUID TRANSFER MEANS INCLUDING A PUMP AND CONDUIT MEANS FOR INTERCONNECTING THE DIP TUBES, CONTROL MEANS ASSOCIATED WITH THE PUMP FOR CAUSING THE PUMP TO PUMP LIQUID IN OPPOSITE DIRECTIONS THROUGH THE CONDUIT MEANS, MEANS FOR SWITCHING THE CONTROL MEANS BETWEEN A FIRST CONDITION IN WHICH LIQUID IS PUMPED FROM THE RESERVOIR TO THE TRAY AND A SECOND CONDITION IN WHICH LIQUID IS PUMPED FROM THE TRAY BACK TO THE RESERVOIR REGARDLESS OF THE DIFFERENCE IN LEVEL BETWEEN THE TRAY AND RESERVOIR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |