Optical: systems and elements – Signal reflector – 3-corner retroreflective
Reexamination Certificate
2007-08-28
2007-08-28
Boutsikaris, Leonidas (Department: 2872)
Optical: systems and elements
Signal reflector
3-corner retroreflective
C264S001900
Reexamination Certificate
active
10336287
ABSTRACT:
A process for making molds for retroreflective sheeting and like articles includes making a substrate having a structured surface of geometric structures such as cube corner elements. The structured surface is in one embodiment partially replicated from a previous generation structured surface, and partially machined in the substrate. At least one of the faces of the structured surface is a compound face that has one machined portion and one non-machined portion, such as a replicated portion. The process can be used to manufacture substrates with desirable geometry cube corner elements, such as cube corner elements having a hexagonal outline in plan view, without requiring the use of pin bundling techniques or laminae. The process can also be used to manufacture articles having cube corner elements in which at least one face of the cube corner element has two constituent faces disposed on opposed sides of a transition line that is nonparallel to a nondihedral edge of such cube corner element.
REFERENCES:
patent: 1194294 (1916-08-01), Johanson
patent: 1591572 (1926-07-01), Stimson
patent: 3684348 (1972-08-01), Rowland
patent: 3712706 (1973-01-01), Stamm
patent: 3741623 (1973-06-01), Mihalik
patent: 3924928 (1975-12-01), Trimble
patent: 3926402 (1975-12-01), Heenan
patent: 4066236 (1978-01-01), Lindner
patent: 4066331 (1978-01-01), Lindner
patent: 4095773 (1978-06-01), Lindner
patent: 4149304 (1979-04-01), Brynjegard
patent: 4275258 (1981-06-01), Harmsen et al.
patent: 4588258 (1986-05-01), Hoopman
patent: 4601861 (1986-07-01), Pricone et al.
patent: 4775219 (1988-10-01), Appeldorn et al.
patent: 4798178 (1989-01-01), Greulich et al.
patent: 4895428 (1990-01-01), Nelson et al.
patent: 5156863 (1992-10-01), Pricone et al.
patent: 5429857 (1995-07-01), Amemiya et al.
patent: 5450235 (1995-09-01), Smith et al.
patent: 5564870 (1996-10-01), Benson et al.
patent: 5565151 (1996-10-01), Nilsen
patent: 5600484 (1997-02-01), Benson et al.
patent: 5614286 (1997-03-01), Bacon, Jr. et al.
patent: 5657162 (1997-08-01), Nilsen et al.
patent: 5696627 (1997-12-01), Benson et al.
patent: 5706132 (1998-01-01), Nestegard et al.
patent: 5734501 (1998-03-01), Smith
patent: 5759468 (1998-06-01), Smith et al.
patent: 5812315 (1998-09-01), Smith et al.
patent: 5822121 (1998-10-01), Smith et al.
patent: 5837082 (1998-11-01), Grafe
patent: 5840406 (1998-11-01), Nilsen
patent: 5866233 (1999-02-01), Oshima et al.
patent: 6010609 (2000-01-01), Mimura et al.
patent: 6136416 (2000-10-01), Smith et al.
patent: 6277470 (2001-08-01), Smith et al.
patent: 6413615 (2002-07-01), Smith et al.
patent: 44 29 683 (1996-03-01), None
patent: 197 55 061 (2003-04-01), None
patent: 0 194 173 (1986-09-01), None
patent: 0 390 344 (1990-10-01), None
patent: 0 390 344 (1995-11-01), None
patent: 0 887 665 (1998-12-01), None
patent: 57138510 (1982-08-01), None
patent: 63-306824 (1988-12-01), None
patent: 05-164132 (1993-06-01), None
patent: 07-135276 (1995-05-01), None
patent: 8-309851 (1996-11-01), None
patent: WO98/56966 (1978-12-01), None
patent: WO95/11464 (1995-04-01), None
patent: WO95/11469 (1995-04-01), None
patent: WO95/11471 (1995-04-01), None
patent: WO96/33839 (1996-10-01), None
patent: WO98/19842 (1998-05-01), None
patent: WO99/01273 (1999-01-01), None
patent: WO 00/60385 (2000-10-01), None
Madou; Fundamentals of Microfabrication; 1997;Chapter 6, pp. 275-323.
Sheet entitled “Techmetal 123 Amorphous Nickel Alloy Coating” from Techmetals, Inc.; Jul. 1994, 1 pg.
Benson Gerald M.
Smith Kenneth L.
3M Innovative Properties Company
Boutsikaris Leonidas
Consilvio Mark
Nowak Sandra K.
LandOfFree
Structured surface articles containing geometric structures... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Structured surface articles containing geometric structures..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structured surface articles containing geometric structures... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3836030