US2829053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers and photographic emulsions containing the same
Assignee: EIDP Inc
•
Filing: 1954-11-08
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Granted: 1958-04-01
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Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Weaver Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:08
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3209; C08F; C08F8/00; C08F8/12; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053; C08F218/00; C08F218/02; C08F218/04; C08F218/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
AN EMULSION OF SILVER HALIDE IN A SYNTHETIC LINEAR COPOLYMER CONSISTING ESSENTIALLY OF INTRALINEAR UNITS OF THE FORMULAE:
Claim 2
Dependent Claim
18 words
AN EMULSION OF SILVER HALIDE IN A SYNTHETIC LINEAR COPOLYMER CONSISTING ESSENTIALLY OF INTRALINEAR UNITS OF THE FORMULAE:
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) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |