Paperless Accounting, Inc.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Paperless Accounting, Inc..The latest application filed is for "electronic money purse and fund transfer system".
- Paperless Accounting, Inc. - Washington DC
| Patent | Date |
|---|---|
| Electronic money purse and fund transfer system Grant 4,906,828 - Halpern March 6, 1 | 1990-03-06 |
| Electronic purse-device Grant 4,877,950 - Halpern * October 31, 1 | 1989-10-31 |
| Proximity data transfer system Grant 4,661,691 - Halpern April 28, 1 | 1987-04-28 |
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