US2740724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allyl starch emulsion and a process of preparing it
Assignee: Individual
•
Filing: 1952-05-09
•
Granted: 1956-04-03
•
Expires: 1972-05-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur N Wrigley
- 👤 Joseph H Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:13
CPC Classifications
C; C08; C08L; C08L3/00; C08L3/04; C08L3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
AN AQUEOUS EMULSION OF ALLYL STARCH CONTAINING DECA(OXYETHYLENE) GLYCOL MONO-P-(1,1,3,3-TETRAMETHYLBUTYL) PHENYL ETHER AS AN EMULSIFIER.
Claim 2
Dependent Claim
15 words
AN AQUEOUS EMULSION OF ALLYL STARCH CONTAINING DECA(OXYETHYLENE) GLYCOL MONO-P-(1,1,3,3-TETRAMETHYLBUTYL) PHENYL ETHER AS AN EMULSIFIER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |