US2499028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber mold and cutting lubricant
Assignee: Individual
•
Filing: 1946-04-09
•
Granted: 1950-02-28
•
Expires: 1966-04-09
Abstract
No abstract record available.
Inventors
- 👤 Walter G Kunze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:12
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29K; B29K2021/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
A COMPOSITION FOR COATING MOLDING FORMS FOR PLASTIC MIXTURES INGREDIENTIALLY COMPRISING A SURFACE ACTIVE WETTING AGENT OF THE ALCOHOL SULFATES GROUP, AND AN INTERCEPTOR OF THE ETHYLENE OXIDE POLYMER GROUP COMBINED THEREWITH TO PRODUCE A BODY FOR THE MIXTURE AND ADAPTED TO COVER AND FILL THE SURFACES AND INTERSTICES OF SAID FORMS AND INTERVENE BETWEEN THE MOLDING MIXTURE TO BE POURED IN AND SAID SURFACES, AN ALKALINE BUFFER SALT FOR CONTROLLING THE CORROSIVE CONDITION OF THE MIXTURE, AN INDICATOR DYE FOR DISCLOSING THE CONCENTRATION OF HYDROGEN ION IN THE MIXTURE, WATER FOR DISSOLVING THE INGREDIENTS OF THE MIXTURE AFOREMENTIONED, SAID INGREDIENTS BEING PROPORTIONED IN WEIGHT TO PROVIDE APPROXIMATELY NINE PARTS FOR THE WETTING AGENT, ONE HUNDRED PARTS FOR THE ETHYLENE OXIDE POLYMER, ONE TENTH OF A PART FOR SAID BUFFER SALT, A TRACE FOR THE INDICATOR, AND WATER FOUR HUNDRED PARTS.
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) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |