US3002853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compounds
Assignee: Individual
•
Filing: 1959-12-07
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Granted: 1961-10-03
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Heijmer Gustaf Bristol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:01
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28; C04; C04B; C04B26/00; C04B26/02; C04B26/28; C04B26/285; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
139 words
THE PROCESS OF PRODUCING ON CEMENT SURFACES A COATING RESISTANT TO ATTACK BY SUBSTANCES CONTAINED IN THE CEMENT, WHICH CONSISTS OF APPLYING TO SAID SURFACE A COMPOSITION CONTAINING (1) PULVERULENT WATER-INSOLUBLE INORGANIC MATERIAL OF SIZES GRADED BELOW ABOUT 0.3 MILLIMETER, (2) FROM 5% TO LESS THAN 50% OF COARSER PARTICLES OF INORGANIC FILLER MATERIAL, SAID PARTICLES BEING OF SIZES GRADED SO THAT THE SMALLEST OF SAID PARTICLES ARE AT LEAST 0.1 MILLIMETER LARGER THAN THE LARGEST OF THE PARTICLES OF SAID PULVERULENT MATERIAL, AND (3) A LIQUID VEHICLE OF A FILM-FORMING MATERIAL IN AN AMOUNT TO FORM A SPREADABLE MIXTURE, SAID COATING BEING APPLIED BY SPREADING THE SAME ON SAID SURFACE BY A FLAT-SURFACED CORK-FACED INSTRUMENT SO THAT SAID COARSER PARTICLES ACT TO SPACE SAID FLAT CORK FACE FROM SAID SURFACE AND DEFINE THE THICKNESS OF THE SPREAD FILM.
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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |