Patent US3307465A successfully refreshed from Google Patents.
US3307465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-printing apparatus
Assignee: Frederick Post Co
•
Filing: 1964-06-01
•
Granted: 1967-03-07
•
Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 William A Adair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:50
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN COMBINATION, A HOLLOW ROTARY LIGHT-PRINTING CYLINDER, A FIXEDLY POSITIONED ELONGATED HEAT-PRODUCING SOURCE OF ACTINIC LIGHT WITHIN SAID CYLINDER SURROUNDED BY AIR SPACE, MEANS OPERABLE TO EFFECT COOLER END PORTIONS OF THE CYLINDER AND PROGRESSIVELY HOTTER PORTIONS AWAY FROM SAID ENDS, AND A FIXEDLY POSITIONED LIGHT-OBSTRUCTING MEANS BETWEEN SAID LIGHT SOURCE AND THE INTERIOR OF THE CYLINDER,
Claim 2
Dependent Claim
57 words
IN COMBINATION, A HOLLOW ROTARY LIGHT-PRINTING CYLINDER, A FIXEDLY POSITIONED ELONGATED HEAT-PRODUCING SOURCE OF ACTINIC LIGHT WITHIN SAID CYLINDER SURROUNDED BY AIR SPACE, MEANS OPERABLE TO EFFECT COOLER END PORTIONS OF THE CYLINDER AND PROGRESSIVELY HOTTER PORTIONS AWAY FROM SAID ENDS, AND A FIXEDLY POSITIONED LIGHT-OBSTRUCTING MEANS BETWEEN SAID LIGHT SOURCE AND THE INTERIOR OF THE CYLINDER,
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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |