Patent US3664546A successfully refreshed from Google Patents.
US3664546A
Expired / Lapsed
US
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Plate separator for self-leveling plate dispensers
Assignee: Individual
•
Filing: 1970-06-17
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Granted: 1972-05-23
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Expires: 1990-06-17
Abstract
Abstract A PLATE SEPARATOR FOR USE WITH DISPOSABLE PAPER OR PLASTIC PLATES BEING DISPENSED FROM A SELF-LEVELING WELL-TYPE PLATE DISPENSER IS DESCRIBED. A BODY MEMBER HAVING A CONVEX UNDERSURFACE PORTION PROJECTING RADIALLY INTO THE DISPENSING WELL OPENING PRESSES REACTIVELY AGAINST A PLURALITY OF THE UPPERMOST PLATES OF AN INVERTED STACK IN THE DISPENSER WELL, AT ONE SIDE THEREOF, TO SEPARATE THEM IN FAN-LIKE FASHION AT THE OTHER SIDE FOR EASY WITHDRAWAL IN A DISPENSING OPERATION.
Inventors
- 👤 George R Shelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:44
CPC Classifications
A; A47; A47F; A47F1/00; A47F1/04; A47F1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |