US2674619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxyalkylene compounds
Assignee: Wyandotte Chemicals Corp
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Filing: 1953-10-19
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Granted: 1954-04-06
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Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Lester G Lundsted
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:56
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0413; C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C11; C11D; C11D1/00; C11D1/38; C11D1/42; C11D1/44; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/06; Y10S516/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A COGENERIC MIXTURE OF CONJUGATED POLUOXYPROPYLENE-POLYOXYETHYLENE COMPOUND CONTAINING IN THEIR STRUCTURE OXYPROPYLENE GROUPS, OXYETHYLENE GROUPS AND AN ORGANIC RADICAL DERIVED FROM A POLYBASIC CARBOXYLIC ACID HAVING A MOLECULAR WEIGHT OF LESS THAN 200; THE COMPOUNDS BEING CHARACTERIZED IN THAT ALL OF THE OXYPROPULENE GROUPS ARE PRESENT IN POLYOXYPROPYLENE CHAINS THAT ARE ATTACHED TO THE ORGANIC RADICAL AT THE SITE OF A REACTIVE HYDROGEN ATOM THEREBY CONSTITUTING A POLYOXYPROPYLENE POLYMER; THE
Claim 2
Dependent Claim
70 words
A COGENERIC MIXTURE OF CONJUGATED POLUOXYPROPYLENE-POLYOXYETHYLENE COMPOUND CONTAINING IN THEIR STRUCTURE OXYPROPYLENE GROUPS, OXYETHYLENE GROUPS AND AN ORGANIC RADICAL DERIVED FROM A POLYBASIC CARBOXYLIC ACID HAVING A MOLECULAR WEIGHT OF LESS THAN 200; THE COMPOUNDS BEING CHARACTERIZED IN THAT ALL OF THE OXYPROPULENE GROUPS ARE PRESENT IN POLYOXYPROPYLENE CHAINS THAT ARE ATTACHED TO THE ORGANIC RADICAL AT THE SITE OF A REACTIVE HYDROGEN ATOM THEREBY CONSTITUTING A POLYOXYPROPYLENE POLYMER; THE
References Cited (Backward Citations)
US2552529A
Cited
US2549439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |