US3418120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for developing one-component diazotype materials
Assignee: International Business Machines Corp
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Filing: 1965-12-28
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Granted: 1968-12-24
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Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Bernard I Halperin
- 👤 James O Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:16
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/18; G03C1/00; G03C1/52; G03D; G03D7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A METHOD FOR DEVELOPING A ONE-COMPONENT DIAZOTYPE ELEMENT COMPRISING, VAPORIZING A DIAZO COUPLER, AND CONTACTING SAID ELEMENT WITH SAID COUPLER AT A PRESSURE OF AT LEAST ABOUT 2 ATMOSPHERES.
Claim 2
Independent Claim
29 words
A METHOD FOR DEVELOPING A ONE-COMPONENT DIAZOTYPE ELEMENT COMPRISING, VAPORIZING A DIAZO COUPLER, AND CONTACTING SAID ELEMENT WITH SAID COUPLER AT A PRESSURE OF AT LEAST ABOUT 2 ATMOSPHERES.
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) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |