US2381071A
Expired / Lapsed
US
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N-phosphono-phosphatoalkyl cyclic amines
Assignee: Eastman Kodak Co
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Filing: 1943-06-26
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Granted: 1945-08-07
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Expires: 1963-06-26
Abstract
No abstract record available.
Inventors
- 👤 James G Mcnally
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:01
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6527; C07F9/6533; C07F9/65335; C07D; C07D265/00; C07D265/28; C07D265/34; C07D265/36; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/553; C07F9/576; C07F9/60
Claims Analysis
Total Claims: 0
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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) | 1948-08-06 | 1949-02-05 | 1949-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-08-06 | 1953-02-05 | 1953-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-08-06 | 1957-02-05 | 1957-08-07 | $7700.00 | Window Closed / Lapsed |