US2726956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographically sensitive diazo paper
Assignee: H P ANDREWS PAPER Co
•
Filing: 1953-12-18
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Granted: 1955-12-13
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Expires: 1973-12-18
Abstract
No abstract record available.
Inventors
- 👤 Jahoda Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:41
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AS A NEW ARTICLE OF MANUFACTURE A PHOTOSENSITIVE DIAZO PAPER COMPRISING A PENETRATION RESISTANT PAPER BASE AND A DISCONTINUOUS LAYER OF DISCRETE, BRITTLE, WATER-IMPERVIOUS STYRENE RESIN PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 1 MICRON IN DIAMETER ADHERED TO SAID BASE, SAID PARTICLES FORMED IN SAID DISCONTINUOUS LAYER BY EVAPORATION OF AN AQUEOUS DISPERSION OF SAID RESIN AT A TEMPERATURE BELOW THE SOFTENING POINT OF THE RESIN TO PRO-
Claim 2
Dependent Claim
71 words
AS A NEW ARTICLE OF MANUFACTURE A PHOTOSENSITIVE DIAZO PAPER COMPRISING A PENETRATION RESISTANT PAPER BASE AND A DISCONTINUOUS LAYER OF DISCRETE, BRITTLE, WATER-IMPERVIOUS STYRENE RESIN PARTICLES HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 1 MICRON IN DIAMETER ADHERED TO SAID BASE, SAID PARTICLES FORMED IN SAID DISCONTINUOUS LAYER BY EVAPORATION OF AN AQUEOUS DISPERSION OF SAID RESIN AT A TEMPERATURE BELOW THE SOFTENING POINT OF THE RESIN TO PRO-
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) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |