US2590850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating sheet material coated with gelatine
Assignee: Individual
•
Filing: 1950-01-14
•
Granted: 1952-04-01
•
Expires: 1970-01-14
Abstract
No abstract record available.
Inventors
- 👤 Dungler Julien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:40
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; D; D06; D06B; D06B19/00; D06B19/0005; D06B19/0029; D06B19/0035; D21; D21F; D21F5/00; F26B3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2065032A
Cited
GB157425A
Cited
US1930937A
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US2060430A
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US2036263A
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GB430909A
Cited
US2198412A
Cited
US2119261A
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US2133330A
Cited
US2389586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |