Patent US2221457A successfully refreshed from Google Patents.
US3260419A
Expired / Lapsed
US
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Dispenser with plunger and diffusor outlet
Assignee: MCDONALDS SYSTEM Inc
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Filing: 1965-01-08
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Granted: 1966-07-12
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Expires: 1985-01-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Weimer
- 👤 Edward G Stalder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:28
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/12; A47G19/18; A47G19/183
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
238 words
A SANITARY CONDIMETER DISPENSER COMPRISING IN COMBINATION OF VERTICAL SHELL DEFINING ON APENING ADJACENT ITS BOTTOM, A DIFFUSOR VALVE SECURED TO SAID DISPENSER ADJACENT SAID OPENING AND DEFINING A PLURALITY OF DISPENSING APERTURES, A CYLINDER MEANS DEFINING A CYLINDER BORE AND DISCHARGE PORT MEANS OVERLYING SAID DIFFUSOR VALVE, SAID CYLINDER BORE AND SAID DISCHARGE PORT MEANS BEING IN OPEN COMMUNICATION WITH EACH OTHER, A PISTON MEANS DISPOSED WITHIN SAID CYLINDER BORE, A CHARGING PORT DEFINED BY SAID CYLINDER MEANS AND IN OPEN COMMUNICATION WITH SAID SHELL INTERIOR AND SAID CYLINDER BORE WHEN SAID PISTON MEANS IS IN AN UPPER IDLE POSITION, SAID CHARGING PORT BEING DISPOSED INTERMEDIATE SAID DISCHARGE PORT MEANS AND THE UPPER END OF SAID CYLINDER BORE, MEANS CONNECTED TO SAID PISTON MEANS FOR MOVING SAID PISTON MEANS FROM SAID UPPER IDLE POSITION TO LOWER DISPENSING POSITIONS IN WHICH SAID PISTON MEANS CLOSES SAID CHARGING PORT TO PREVENT COMMUNICATION BETWEEN SAID CHARGING PORT AND SAID CYLINDER BORE, SEALING MEANS PROVIDED BY SAID CYLINDER MEANS AND SAID DIFFUSOR VALVE FOR SEALING SAID DISPENSING APERTURES FROM COMMUNICATION WITH SAID CYLINDER BORE WHEN SAID PISTON MEANS IS IN SAID UPPER IDLE POSITION AND WHEN SAID PISTON MEANS IS RETURNING FROM SAID DISPENSING POSITIONS TO SAID UPPER IDLE POSITION, SAID PISTON MEANS, SAID DIFFUSOR VALVE AND SAID CYLINDER MEANS BEING PROPORTIONED TO PREVENT DIRECT COMMUNICATION BETWEEN SAID SHELL INTERIOR AND SAID DISPENSING APERTURES IN ALL POSITIONS OF SAID PISTON MEANS.
References Cited (Backward Citations)
US2805891A
Cited
US3150802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |