US3104846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
ringle
Assignee: —
•
Filing: —
•
Granted: 1963-09-24
•
Expires: 1980-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:54
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A LIGHT-PROOF FILM CARTRIDGE COMPRISING A FILM SPOOL IN A CASING COMPRISING TWO SEMICYLINDRICAL BODY HALVES HAVING END WALLS PROVIDED WITH SEMICIRCULAR OPENINGS AT THEIR CENTERS ADAPTED TO RECEIVE THE HUB OF A FILM SPOOL AND HAVING INTERFITTING TONGUES AND GROOVES AT THE RADIAL EDGES OF SAID END WALLS, THE UPPER BODY HALF HAVING A TANGENTIALLY EXTENDED LIP AND THE OTHER HALF A COACTING LIP EXTENDING PARALLEL TO THE FIRST LIP, THE LIPS PROVIDING THEREBETWEEN A NARROW SLOT FOR THE PASSAGE OF A FILM, THE LOWER LIP HAVING NEAR EACH END AND ADJACENT TO SAID SLOT A PROTRUDING TONGUE WITH A LATERAL BEAD AND A SLANTING OUTER WALL, THE UPPER LIP HAVING A COACTING GROOVE NEAR EACH END AND ADJACENT SAID SLOT THAT INTERFITS WITH SAID TONGUE AND BEAD, SAID CASING BEING CHARACTERIZED BY HAVING THE HALVES JOINED BY AN INTEGRAL FLEXIBLE HINGE EXTENDING THE FULL WIDTH OF THE CASING.
Claim 2
Dependent Claim
150 words
A LIGHT-PROOF FILM CARTRIDGE COMPRISING A FILM SPOOL IN A CASING COMPRISING TWO SEMICYLINDRICAL BODY HALVES HAVING END WALLS PROVIDED WITH SEMICIRCULAR OPENINGS AT THEIR CENTERS ADAPTED TO RECEIVE THE HUB OF A FILM SPOOL AND HAVING INTERFITTING TONGUES AND GROOVES AT THE RADIAL EDGES OF SAID END WALLS, THE UPPER BODY HALF HAVING A TANGENTIALLY EXTENDED LIP AND THE OTHER HALF A COACTING LIP EXTENDING PARALLEL TO THE FIRST LIP, THE LIPS PROVIDING THEREBETWEEN A NARROW SLOT FOR THE PASSAGE OF A FILM, THE LOWER LIP HAVING NEAR EACH END AND ADJACENT TO SAID SLOT A PROTRUDING TONGUE WITH A LATERAL BEAD AND A SLANTING OUTER WALL, THE UPPER LIP HAVING A COACTING GROOVE NEAR EACH END AND ADJACENT SAID SLOT THAT INTERFITS WITH SAID TONGUE AND BEAD, SAID CASING BEING CHARACTERIZED BY HAVING THE HALVES JOINED BY AN INTEGRAL FLEXIBLE HINGE EXTENDING THE FULL WIDTH OF THE CASING.
References Cited (Backward Citations)
US2731894A
Cited
FR467008A
Cited
FR908283A
Cited
US2476996A
Cited
US2687157A
Cited
US2885135A
Cited
US2844244A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |