The cover and the base are shown alone for convenience of illustration only.
 
                 Patent Grant
 Patent Grant
                     D921217
 D921217
                    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
The cover and the base are shown alone for convenience of illustration only.
| Number | Name | Date | Kind | 
|---|---|---|---|
| 2052376 | Zellers | Aug 1936 | A | 
| 2549644 | Silverman | Apr 1951 | A | 
| 3831742 | Gardella | Aug 1974 | A | 
| 3963120 | Perfect | Jun 1976 | A | 
| 4362242 | Cheetham | Dec 1982 | A | 
| 4557376 | Probst | Dec 1985 | A | 
| 5746313 | Wilson | May 1998 | A | 
| 6365183 | Edgren | Apr 2002 | B1 | 
| D479684 | Miller | Sep 2003 | S | 
| D483945 | Tanji | Dec 2003 | S | 
| 7780985 | Solomon | Aug 2010 | B2 | 
| D740029 | Otto | Oct 2015 | S | 
| 20180200191 | Lay | Jul 2018 | A1 | 
| Entry | 
|---|
| College of Dentistry and Dental Clinics, “Operative Dentistry”, first available Aug. 13, 2014. (https://www.dentistry.uiowa.edu/operative-instruments-materials-dental-amalgam) (Year: 2014). | 
| Amazon, “ShakeSphere Tumbler”, first available Feb. 11, 2019. (https://www.amazon.co.uk/ShakeSphere-Tumbler-Winning-Patented-Blending/dp/B07NLGP82S/ref=pd_rhf_eeolp_p_img_1?_encoding=UTF8&psc=1&refRID=V2A01GJZ755FQCRD4SWC) (Year: 2019). | 
| Jewelry and Findings, “Openable Plastic Bead Containers”, first available Nov. 6, 2020. (https://www.jewelryandfindings.com/p-2315399-openable-plastic-bead-containers-capsule-shaped-container-clear.html) (Year: 2020). | 
| Alibaba, “Dental Amalgam Capsule”, first available Nov. 6, 2020. (https://www.alibaba.com/product-detail/Dental-Amalgam-Capsule-Alloy-43-Ag_561888877.html) (Year: 2020). |