Abstract A photographic film roll including a filmstrip wound on a film spool comprises two masking strips of an opaque plastic material one covering the beginning end of the filmstrip and the other covering the completed end. The outer end of the one masking strip and the inner end of the other masking strip are each attached to the nonemulsion side of the filmstrip. Each masking strip is wound with, and overlies the nonemulsion side of, its respective end of the filmstrip for at least several windings of the filmstrip when wound on the spool. The masking strips are slightly wider than the filmstrip so as to project slightly beyond its edges while covering the sprocket holes, and are made of thin, flexible plastic material such that the camera feeding sprockets passing through the sprocket holes of the filmstrip will emboss the masking strips but will not puncture them.
Inventors
👤 Menashe Shamay
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-30 13:14
CPC Classifications
G; G03; G03C; G03C3/00; G03C3/02; G03D; G03D15/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
23 words
A photographic film roll as defined in claim 1, wherein the inner end of said one masking strip is unattached to the filmstrip.
Claim 2
Dependent Claim
23 words
A photographic film roll as defined in claim 2, wherein the outer end of said other masking strip is attached to the filmstrip.
Claim 3
Dependent Claim
46 words
A photographic film roll as defined in claim 3, wherein the outer ends of the two masking strips are each attached to the filmstrip by an adhesive, and the inner end of said other masking strip is attached to the filmstrip by a pressure-sensitive adhesive tape.
Claim 4
Dependent Claim
27 words
A photographic film roll as defined in claim 1, wherein said filmstrip is 35 mm. in width, and said masking strips are each 36.2 mm. in width.
Claim 5
Dependent Claim
22 words
A photographic film roll as defined in claim 5, wherein the end walls of said film spool are spaced 36 mm. apart.
Claim 6
Dependent Claim
36 words
A photographic film roll as defined in claim 1, wherein said filmstrip is 174 cm. in length, said one masking strip is 42 cm. in length, and said other masking strip is 26 cm. in length.
Claim 7
Dependent Claim
24 words
A photographic film roll as defined in claim 1, wherein said masking strips are each of semimatte, opaque, plastic film 0.10 mm. in thickness.