US3306884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isothiuronium salts
Assignee: Eastman Kodak Co
•
Filing: 1965-02-10
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Granted: 1967-02-28
•
Expires: 1985-02-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas K Dykstra
- 👤 Donald A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:34
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/38; G03C5/39; C; C07; C07C; C07C335/00; C07C335/30; C07C335/32; C08; C08F; C08F28/00; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346; G03C1/76; G03C1/825; G03C1/835
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
6 words
POLYMERS HAVING THE FOLLOWING REPEATING UNIT:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |