Patent US3350695A successfully refreshed from Google Patents.
US3449303A
Expired / Lapsed
US
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Polymers of phosphate esters
Assignee: Eastman Kodak Co
•
Filing: 1966-06-23
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Granted: 1969-06-10
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Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
- 👤 Edward H Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:07
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/356; D06M15/3564; C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C08; C08F; C08F30/00; C08F30/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2394829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |