Specialty envelope
Patent 4186868 Issued on February 5, 1980. Estimated Expiration Date: 
May 1, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 1, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1720721 2316757 2601530 3458034 InventorApplicationNo. 05/901502 filed on 05/01/1978US Classes:229/92.1, Letter sheets229/92.7, Closure flap40/774, Foldable (e.g., for enclosing picture therein)D19/3EnvelopeExaminersPrimary: Garbe, Stephen P.Attorney, Agent or FirmInternational ClassB42D 15/08 (20060101)AbstractAn envelope for sending a written message with a photograph attached thereto. An adhesive is provided on one flap for attaching a photograph; the flap can then be folded so that the photograph is over the writing surface. Other flaps fold over the photograph so that the photograph is shielded in its entirety.Field of SearchARTICLE ADHESIVELY SECURED TO SUPPORT | |
