US3146690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum film holder
Assignee: Individual
•
Filing: 1960-10-21
•
Granted: 1964-09-01
•
Expires: 1980-10-21
Abstract
No abstract record available.
Inventors
- 👤 Hoffman Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:39
CPC Classifications
G; G03; G03B; G03B1/00; G03B1/42; G03B1/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A HOLDER FOR FLEXIBLE SHEET MATERIAL, SUCH AS PHOTOGRAPHIC FILM, ADAPTED FOR REMOVAL FROM A CAMERA FOR LOADING WITH SAID MATERIAL, SAID HOLDER INCLUDING A FRAME SUPPORTING A FACING MEMBER HAVING A FLAT FRONT FACE ADAPTED TO RECEIVE SAID MATERIAL AND PROVIDED WITH OPENINGS DISTRIBUTED THEREOVER FOR THE APPLICATION OF SUCTION TO THE MATERIAL PLACED AGAINST SAID FLAT FACE; MANIFOLD MEANS AT THE REAR OF SAID MEMBER FOR APPLYING SUCTION TO SAID OPENINGS; A PLURALITY OF SETS OF CLAMPING MEANS SAID SETS ARRANGED IN A SERIES OF NESTED RECTANGLES; A SPRING LOADED PIN MEMBER FIXED TO EACH OF SAID CLAMPING MEMBERS AND EXTENDING THROUGH SAID HOLDER; EXTENDABLE LEG PORTIONS PIVOTED FROM EACH OF SAID PIN MEMBERS SO AS TO PERMIT SELECTIVELY EXTENDING SAID PIN MEMBERS BEYOND SAID HOLDER WHEREBY WHEN SAID HOLDER IS PLACED FLAT ON A BASE, THE WEIGHT OF SAID HOLDER ON THE SAID SELECTIVELY EXTENDED PINS WILL FORCE ITS ASSOCIATED CLAMPS UP ABOVE THE SURFACE OF SAID FRONT FACE, SAID CLAMPING MEANS BEING NORMALLY RECESSED IN SAID FRONT FACE.
Claim 2
Dependent Claim
172 words
A HOLDER FOR FLEXIBLE SHEET MATERIAL, SUCH AS PHOTOGRAPHIC FILM, ADAPTED FOR REMOVAL FROM A CAMERA FOR LOADING WITH SAID MATERIAL, SAID HOLDER INCLUDING A FRAME SUPPORTING A FACING MEMBER HAVING A FLAT FRONT FACE ADAPTED TO RECEIVE SAID MATERIAL AND PROVIDED WITH OPENINGS DISTRIBUTED THEREOVER FOR THE APPLICATION OF SUCTION TO THE MATERIAL PLACED AGAINST SAID FLAT FACE; MANIFOLD MEANS AT THE REAR OF SAID MEMBER FOR APPLYING SUCTION TO SAID OPENINGS; A PLURALITY OF SETS OF CLAMPING MEANS SAID SETS ARRANGED IN A SERIES OF NESTED RECTANGLES; A SPRING LOADED PIN MEMBER FIXED TO EACH OF SAID CLAMPING MEMBERS AND EXTENDING THROUGH SAID HOLDER; EXTENDABLE LEG PORTIONS PIVOTED FROM EACH OF SAID PIN MEMBERS SO AS TO PERMIT SELECTIVELY EXTENDING SAID PIN MEMBERS BEYOND SAID HOLDER WHEREBY WHEN SAID HOLDER IS PLACED FLAT ON A BASE, THE WEIGHT OF SAID HOLDER ON THE SAID SELECTIVELY EXTENDED PINS WILL FORCE ITS ASSOCIATED CLAMPS UP ABOVE THE SURFACE OF SAID FRONT FACE, SAID CLAMPING MEANS BEING NORMALLY RECESSED IN SAID FRONT FACE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |