US3140645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoprinter timing apparatus
Assignee: 3M Co
•
Filing: 1957-08-05
•
Granted: 1964-07-14
•
Expires: 1977-08-05
Abstract
No abstract record available.
Inventors
- 👤 Block Charles
- 👤 John R Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:35
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PHOTOPRINTING APPARATUS COMPRISING MEANS FOR HOLDING AN ORIGINAL AND A DUPLICATE MEMBER IN REPRODUCING RELATIONSHIP, SAID MEANS INCLUDING A SELECTIVELY MOVABLE PRESSURE PLATEN FOR ENGAGING THE DUPLICATE MEMBER, A SOURCE OF PRINTING LIGHT, A SHUTTER SELECTIVELY MOVABLE INTO SHUTTER-CLOSED POSITION BETWEEN THE SOURCE OF PRINTING LIGHT AND THE ORIGINAL AND DUPLICATE MEMBERS, A TIMER, MEANS RESPONSIVE TO THE PLACING OF THE PLATEN IN CLOSED, DUPLICATE-ENGAGING POSITION TO START THE TIMER, AND MEANS OPERATED BY AND RESPONSIVE TO THE TIMER TO MOVE THE SHUTTER TO OPEN POSITION WHEN THE TIMER IS RUNNING AND TO MOVE THE SHUTTER TO CLOSED POSITION WHEN THE TIMER IS STOPPED.
Claim 2
Dependent Claim
105 words
A PHOTOPRINTING APPARATUS COMPRISING MEANS FOR HOLDING AN ORIGINAL AND A DUPLICATE MEMBER IN REPRODUCING RELATIONSHIP, SAID MEANS INCLUDING A SELECTIVELY MOVABLE PRESSURE PLATEN FOR ENGAGING THE DUPLICATE MEMBER, A SOURCE OF PRINTING LIGHT, A SHUTTER SELECTIVELY MOVABLE INTO SHUTTER-CLOSED POSITION BETWEEN THE SOURCE OF PRINTING LIGHT AND THE ORIGINAL AND DUPLICATE MEMBERS, A TIMER, MEANS RESPONSIVE TO THE PLACING OF THE PLATEN IN CLOSED, DUPLICATE-ENGAGING POSITION TO START THE TIMER, AND MEANS OPERATED BY AND RESPONSIVE TO THE TIMER TO MOVE THE SHUTTER TO OPEN POSITION WHEN THE TIMER IS RUNNING AND TO MOVE THE SHUTTER TO CLOSED POSITION WHEN THE TIMER IS STOPPED.
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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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |