US3893138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accessory socket for interchangeable lens for photographic cameras
Assignee: Individual
•
Filing: 1973-08-13
•
Granted: 1975-07-01
•
Expires: 1993-08-13
Abstract
Abstract An accessory mount for associating accessories with interchangeable lenses including a mount for incorporation in the lens assembly and having an aperture coaxial with the lens axis with the mount having a surface extended laterally outwardly from the lens barrel to engage and support the accessories.
Inventors
- 👤 Ralf Sture Frode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:46
CPC Classifications
G; G03; G03B; G03B3/00; G03B3/02; G03B17/00; G03B17/02; G03B17/12; G03B17/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
84 words
An interchangeable lens including an accessory mount for supporting accessories laterally on said lens, said lens having at least one adjusting mechanism, said mount comprising a plate having an aperture therein, means for mounting said plate on said lens forward of the adjusting mechanisms thereof and with said aperture aligned with the optical axis of the lens, said plate having a lateral portion positioned adjacent the lens body, and positioning means for fixing the position of said mounting plate relative to said adjusting mechanism.
Claim 2
Dependent Claim
84 words
An interchangeable lens including an accessory mount for supporting accessories laterally on said lens, said lens having at least one adjusting mechanism, said mount comprising a plate having an aperture therein, means for mounting said plate on said lens forward of the adjusting mechanisms thereof and with said aperture aligned with the optical axis of the lens, said plate having a lateral portion positioned adjacent the lens body, and positioning means for fixing the position of said mounting plate relative to said adjusting mechanism.
Claim 3
Dependent Claim
26 words
The lens and accessory mount of claim 1 in which said positioning means includes a spacer ring positioned between said mount plate and said adjusting mechanism.
Claim 4
Dependent Claim
30 words
The lens and accessory mount of claim 2 in which said adjusting mechanism includes a control ring and said spacer ring is positioned at least partially within said control ring.
Claim 5
Dependent Claim
38 words
The lens and accessory mount of claim 3 in which said positioning means includes threaded members extended longitudinally through said mount plate, said spacer ring, and said adjusting mechanism and threaded into a structural portion of said lens.
Claim 6
Dependent Claim
19 words
The lens and accessory mount of claim 1 including an auxiliary mount for accessories secured on said mount plate.
Claim 7
Dependent Claim
17 words
The lens and accessory mount of claim 5 in which said auxiliary mount is a bayonet ring.
References Cited (Backward Citations)
US1688370A
Cited
US2926577A
Cited
US3067664A
Cited
US3266396A
Cited
US3472140A
Cited
US3747490A
Cited
US3766841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |