US3459550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazotype material
Assignee: Keuffel and Esser Co
•
Filing: 1966-06-15
•
Granted: 1969-08-05
•
Expires: 1986-06-15
Abstract
No abstract record available.
Inventors
- 👤 Johannes Munder
- 👤 Siegfried Scheler
- 👤 Richard Brahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:41
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/18; G03C1/00; G03C1/52; G03C1/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2286701A
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BE511504A
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GB740565A
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GB868715A
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GB864011A
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GB895249A
Cited
NL6406974A
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US3407066A
Cited
US3311475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |