US3610123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible camera with collapsible viewfinder
Assignee: Polaroid Corp
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Filing: 1969-07-01
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Granted: 1971-10-05
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Expires: 1989-07-01
Abstract
Abstract A COLLAPSIBLE, SELF-ERECTING OPTICAL ASSEMBLY INCLUDING A RANGEFINDER AND A VIEWFINDER. A SELECTED SHAPE IMPARTED TO A TELESCOPING MEMBER PREVENTS IT FORM BINDING OR JAMMING DURING MOVEMENT. PRECISE ALIGNMENT IS ACHIEVED AUTOMATICALLY ON ERECTION. SPRINGS ERECT THE OPTICAL ASSEMBLY WHEN RESTRAINING FORCES ARE REMOVED.
Inventors
- 👤 Alfred H Bellows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:34
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/04; G03B13/00; G03B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |