As it's of knowledge of the technicians responsible for manufacturing cases for oral hygiene products, the first cases to be developed would hold toothbrush, toothpaste, dental ribbon or floss arranged loose or fit in the case. Among others, the Brazilian patents MU7800574-4, MU8202290-9 and MU8500729-3, of the same inventor of the present invention, revealed improved cases with the same concept of the first cases, but still those bring inconveniences and difficulties of use, using many high priced items that also produce non-biodegradable industrial residues.
After researching, carrying cases were found as shown on the following patents:
a) The US patent Des. 328,978, that presents integrated dental floss on one of the case's extremities, and internal space for toothbrush combined with another lid, with a single lid for accessing the case's interior, with space only for the toothbrush and the dental floss is fixed on the other end of the case's body;
b) US patent Des. 336,782, that presents carrying case combining toothbrush, toothpaste compartment, dental floss holder and protecting dental floss cover on the same shape as the case, without internal space for accommodating items and with fixed compartment for dental floss on one of the body's extremity;
c) U.S. Pat. No. 5,078,526 presents tube shaped case for accommodating dental paste and brush, with inferior end for fitting dental floss holder and lid together with prismatic square duct for housing the toothpaste, with no internal space for accommodating items and with fixed dental floss on one of the body's extremity;
d) US patent Des, 362,341, presents prismatic rectangular case, with space for accommodating toothbrush with its cover and a compartment for dental floss on the opposite side, with no internal space for accommodating items and with fixed dental floss on one of the case's body extremity;
e) U.S. Pat. No. 5,415,187 presents prismatic rectangular case combining compartment for dental floss on one of its ends, space for toothbrush and its cover in the centre, and room for the toothpaste on the other end of the case, without internal space for accommodating items and with dental floss fixed on one of the body's extremity;
f) Patent US2002088474 shows prismatic case accommodating the dental floss on one of its ends, space for toothbrush and its cover in the centre and the toothpaste on the other end, with no internal space for accommodating items and with a fixed dental floss on one of the body's end;
g) Patent US2005211263 presents toothbrush container with torsion and ventilating cover integrated with the dental floss compartment, with room for toothbrush with dental paste compartment and with a lid on one of its ends and with fixed dental floss section on the other end, with no internal space for accommodating items and with fixed dental floss on one of its body's extremity;
h) Patent US2006260635 presents case combining toothbrush, and dental floss compartment on its opposite end, with no internal space for accommodating items and with dental floss compartment on one of the case's body extremity;
i) Patent US2006280548 presents a lid with dental floss compartment on its toothbrush's extremity, without internal space for accommodating items and with fixed dental floss compartment on one of the case's body extremity;
j) Patent US2007110503 shows a case including space for toothbrush and accommodation of dental floss on the opposite side, with no internal space for accommodating items and with dental floss compartment on one of the case's body extremity.
The carrying cases revealed previously show disadvantages and limitations of having restrict space and only accommodating toothbrush with or without dental paste compartment, and of using a single access lid to the case's interior and also the fact that the dental floss compartment does not open and give access the case's interior.