Lamarr and Anthiel received a patent in 1941, but the enormous significance of their invention was not realized until decades later. It was first implemented on naval ships during the Cuban Missile Crisis and subsequently emerged in numerous military applications.
Cash back credit card reward programs started out rather simply, offering a flat percentage rate (typically 1 percent of purchases) rebated back to the customer in the form of a check at the end of the year or a statement credit.
Hereâs how a cash advance will send up a red flag for lenders looking at your credit report: First, the cash advance is immediately added to your debt balance, which lowers your available credit, which lowers your credit score for all potential lenders to see. Second, larger card issuers regularly re-evaluate their customersâ behavior.