US3090799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pentaerythritol esters of phosphoric acids and compositions containing the same
Assignee: Agfa Gevaert NV
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Filing: 1960-11-15
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Granted: 1963-05-21
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Expires: 1980-11-15
Abstract
No abstract record available.
Inventors
- 👤 Wahl Ottmar
- 👤 Grabhofer Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/527; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65746
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
16 words
A COMPOUND OF THE GROUP CONSISTING OF PENTAERYTHRITOL ESTERS OF PHOSPHORIC ACIDS HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2583549A
Cited
US2847443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |