US2937104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric alkylene-oxide defoamer material for alkaline aqueous adhesive solutions and the like
Assignee: Individual
•
Filing: 1958-08-18
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Granted: 1960-05-17
•
Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Stephan John Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:36
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
A SOLVENT EXTRACTED GROUND SOYBEAN MATERIAL IN DRY FORM CONTAINING NOT OVER ABOUT 5% BY WEIGHT OF A POLYGLYCOL SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ALKYLENE-OXIDES HAVING AT LEAST THREE CARBON ATOMS, COPOLYMERS OF ALKYLENE-OXIDES, AND MIXTURES THEREOF, SAID POLYGLYCOL BEING SOLUBLE IN ETHYLENE GLYCOL TO THE EXTENT OF NOT OVER 10% BY WEIGHT AND HAVING AN AVERAGE MOLECULAR WEIGHT OF AT LEAST ABOUT 500, SAID POLYGLYCOL BEING PRESENT IN AN AMOUNT EFFECTIVE TO RENDER SAID MATERIAL SUBSTANTIALLY NON-DUSTING AND SAID ADHESIVE MATERIAL THEREBY BEING IN A FORM SUITABLE FOR ADMIXTURE IN THE FIELD WITH AQUEOUS ADHESIVE SOLUTION FORMING MATERIALS, THE SAID POLYGLYCOL AT SUCH TIME ALSO FUNCTIONING TO INHIBIT FORMATION OF FOAM IN THE SOLUTION WHEN AGITATED.
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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |