US2836575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a polyester-dhso-cyanate reaction product and an alkyl acid phosphate and process of preparation
Assignee: Dunlop Rubber Co Ltd
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Filing: 1955-06-21
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Granted: 1958-05-27
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Expires: 1975-06-21
Abstract
No abstract record available.
Inventors
- 👤 Jones Frederick Arthur
- 👤 Cooper Wilfrid
- 👤 Bowen Daniel Owen
- 👤 Griffiths William Alun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:49
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/089; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A COMPOSITION FOR THE PREPARATION OF SYNTHETIC ELASTOMERS WHICH COMPRISES A REACTION PRODUCT OF A POLYESTER AND AN ORGANIC DIISOCYANATE IN ADMIXTURE WITH FROM 0.1 PERCENT TO 1.0 PERCENT BY WEIGHT OF AN ALKYL ACID PHOSPHATE.
Claim 2
Dependent Claim
36 words
A COMPOSITION FOR THE PREPARATION OF SYNTHETIC ELASTOMERS WHICH COMPRISES A REACTION PRODUCT OF A POLYESTER AND AN ORGANIC DIISOCYANATE IN ADMIXTURE WITH FROM 0.1 PERCENT TO 1.0 PERCENT BY WEIGHT OF AN ALKYL ACID PHOSPHATE.
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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |