US2518359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating for insulation boards
Assignee: United States Gypsum Co
•
Filing: 1947-07-21
•
Granted: 1950-08-08
•
Expires: 1967-07-21
Abstract
No abstract record available.
Inventors
- 👤 Henry Z Mohrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
D; D21; D21J; D21J1/00; D21J1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A LIQUID COATING COMPOSITION SUITABLE FOR APPLICAITON TO WET INSULATING BOARD DURING ITS PROCESS OF MANUFACTURE CONSISTING ESSENTIALLY OF AN AQUEOUS GELATINIZED STARCH VEHICLE, PIGMENTFILLERS, AND AN AMOUNT OF TRIBUTYL PHOSPHATE EQUAL TO FROM ABOUT 20% TO ABOUT 80% BY WEIGHT, AS CALCULATED ON THE STARCH IN THE COMPOSITION.
Claim 2
Dependent Claim
49 words
A LIQUID COATING COMPOSITION SUITABLE FOR APPLICAITON TO WET INSULATING BOARD DURING ITS PROCESS OF MANUFACTURE CONSISTING ESSENTIALLY OF AN AQUEOUS GELATINIZED STARCH VEHICLE, PIGMENTFILLERS, AND AN AMOUNT OF TRIBUTYL PHOSPHATE EQUAL TO FROM ABOUT 20% TO ABOUT 80% BY WEIGHT, AS CALCULATED ON THE STARCH IN THE COMPOSITION.
References Cited (Backward Citations)
US1733524A
Cited
US1827083A
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US2229620A
Cited
US2378113A
Cited
US2185859A
Cited
US2287161A
Cited
US2374676A
Cited
US2388526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |