US3396030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide emulsions
Assignee: Polaroid Corp
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Filing: 1967-10-19
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Granted: 1968-08-06
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Expires: 1987-10-19
Abstract
No abstract record available.
Inventors
- 👤 Howard C Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; C; C07; C07C; C07C255/00; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F20/54; C08F20/60; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A PHOTOGRAPHIC SILVER HALIDE EMUSION COMPRISING AN ADDITIONAL COPOLYMER COMRPSING THE REACTION PRODUCT RESULTING FROM THE POLYMERIZTION OF A FIRST MONOMER REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
25 words
A PHOTOGRAPHIC SILVER HALIDE EMUSION COMPRISING AN ADDITIONAL COPOLYMER COMRPSING THE REACTION PRODUCT RESULTING FROM THE POLYMERIZTION OF A FIRST MONOMER REPRESENTED BY THE FORMULA:
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |