Patent US3243482A successfully refreshed from Google Patents.
US3243482A
Expired / Lapsed
US
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Surface-active thiophosphoric acid esters of polyglycol ethers
Assignee: GAF Chemicals Corp
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Filing: 1962-01-10
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Granted: 1966-03-29
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Expires: 1982-01-10
Abstract
No abstract record available.
Inventors
- 👤 Kaplan Harry
- 👤 Jr Leslie G Nunn
- 👤 Robert C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:33
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C07F9/1651; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN ANIONIC SURFACE-ACTIVE THIOPHOSPHORIC ACID ESTER OF A NON-IONIC SURGACE-ACTIVE CONDENSATION PRODUCT OF AN ALKYLENE OXIDE OF 2 TO 4 CARBON ATOMS WITH AN ALKYLPHENOL CONTAINING AT LEAST 11 CARBON ATOMS, WHEREIN THE ALKYLENE OXIDE RADICALS OF SAID CONDENSATION PRODUCT ARE IDENTICAL, THE CONDENSATION PRODUCT CONTAINS IN ITS MOLECULE AT LEAST FOUR SUCH ALKYLENE OXIDE RADICALS, THE ESTERIFIED NON-IONIC SURFACE-ACTIVE CONDENSATION PRODUCT RADICAL CORRESPONDS TO 0.5 TO 2 STOICHIOMETRIC EQUIVALENTS PER ATOMIC EQUIVALENT OF PHOSPHORUS, AND THE WEIGHT RATIO OF PHOSPHORUS TO SULFUR IS ABOUT 1:2.
Claim 2
Dependent Claim
86 words
AN ANIONIC SURFACE-ACTIVE THIOPHOSPHORIC ACID ESTER OF A NON-IONIC SURGACE-ACTIVE CONDENSATION PRODUCT OF AN ALKYLENE OXIDE OF 2 TO 4 CARBON ATOMS WITH AN ALKYLPHENOL CONTAINING AT LEAST 11 CARBON ATOMS, WHEREIN THE ALKYLENE OXIDE RADICALS OF SAID CONDENSATION PRODUCT ARE IDENTICAL, THE CONDENSATION PRODUCT CONTAINS IN ITS MOLECULE AT LEAST FOUR SUCH ALKYLENE OXIDE RADICALS, THE ESTERIFIED NON-IONIC SURFACE-ACTIVE CONDENSATION PRODUCT RADICAL CORRESPONDS TO 0.5 TO 2 STOICHIOMETRIC EQUIVALENTS PER ATOMIC EQUIVALENT OF PHOSPHORUS, AND THE WEIGHT RATIO OF PHOSPHORUS TO SULFUR IS ABOUT 1:2.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |