US3167256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic flash apparatus
Assignee: Rollei of America Inc
•
Filing: 1962-11-29
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Granted: 1965-01-26
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Expires: 1982-11-29
Abstract
No abstract record available.
Inventors
- 👤 Franklin P Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:28
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B15/05; G03B15/04; G03B15/0442; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517; G03B2215/0525; G03B2215/0535
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
151 words
A PHOTOGRAPHIC FLASH UNIT COMPRISING A HOUSING HAVING AN OPEN END, A REFLECTOR MOUNTED WITHIN SAID HOUSING AND FACING SAID OPEN END, MEANS TO SUPPORT A PHOTOGRAPHIC LIGHT SOURCE IN COOPERATIVE RELATION WITH SAID REFLECTOR, A REMOVABLE LENS HAVING A SHAPE TO CONFORM TO THAT OF SAID OPEN END, AND MEANS TO MOUNT SAID LENS IN SAID HOUSING TO CLOSE SAID OPEN END, MEANS INCLUDING A PAIR OF SPACED POSITIONING RIDGES FORMED ON THE INTERIOR SURFACE OF SAID HOUSING IN THE VICINITY OF SAID OPEN END, A FIRST LOCKING TAB FORMED AS A PORTION OF SAID HOUSING IN THE VICINITY OF SAID OPEN END AND IN A POSITION GENERALLY OPPOSITE TO SAID RIDGES, AND A MATING LOCKING TAB FORMED AS A PORTION OF SAID LENS, SAID LENS BEING REMOVABLY MOUNTED WITHIN SAID OPEN END BY THE POSITIONING OF SAID LENS BETWEEN SAID RIDGES, AND BY THE INTERENGAGEMENT OF SAID LOCKING TABS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |