Patent US2987527A successfully refreshed from Google Patents.
US2987527A
Expired / Lapsed
US
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Treating compound and method
Assignee: Central Soya Co Inc
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Filing: 1959-02-16
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Granted: 1961-06-06
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Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Donald E Sincroft
- 👤 Endre F Sipos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:50
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/08; C07F9/09; C07F9/10; C07F9/106
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
30 words
A SURFACE-MODIFYING COMPOSITION, COMPRISING A REACTION MIXTURE RESULTING FROM THE REACTION OF 10-99 PARTS BY WEIGHT OF LECITHIN WITH 90-1 PARTS OF N-ALKYL SUBSTITUTED POLYMETHYLENE-DIAMINE, WITH THE STRUCTURAL FORMULA OF
Claim 2
Dependent Claim
30 words
A SURFACE-MODIFYING COMPOSITION, COMPRISING A REACTION MIXTURE RESULTING FROM THE REACTION OF 10-99 PARTS BY WEIGHT OF LECITHIN WITH 90-1 PARTS OF N-ALKYL SUBSTITUTED POLYMETHYLENE-DIAMINE, WITH THE STRUCTURAL FORMULA OF
Claim 3
Dependent Claim
22 words
IN A METHOD FOR PREPARING A SURFACE-MODIFYING COMPOSITION, THE STEPS OF REACTING LECITHIN WITH AN N-ALKYL SUBSTITUTED POLYMETHYLENE-DIAMINE HAVING THE STRUCTURAL FORMULA
Claim 4
Dependent Claim
22 words
IN A METHOD FOR PREPARING A SURFACE-MODIFYING COMPOSITION, THE STEPS OF REACTING LECITHIN WITH AN N-ALKYL SUBSTITUTED POLYMETHYLENE-DIAMINE HAVING THE STRUCTURAL 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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |