Calkins; John A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Calkins; John A..The latest application filed is for "desktop printable file folder blank and filing system".
- Calkins; John A. - Hastings MN
- Calkins; John A. - Montague MI
- Calkins; John A. - Ann Arbor MI
| Patent | Date |
|---|---|
| Desktop printable file folder blank and filing system Grant 6,969,092 - MacWilliams , et al. November 29, 2 | 2005-11-29 |
| Desktop printable file folder blank and filing system App 20040051296 - MacWilliams, Steve C. ; et al. | 2004-03-18 |
| Tag Grant D361,094 - Calkins , et al. August 8, 1 | 1995-08-08 |
| Engine throttle stop control system Grant 4,848,189 - Simon, Jr. , et al. July 18, 1 | 1989-07-18 |
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