US2835618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solution and method for producing heat resistant electrical insulation coatings on ferrous surfaces
Assignee: Parker Rust Proof Co
•
Filing: 1955-03-09
•
Granted: 1958-05-20
•
Expires: 1975-03-09
Abstract
No abstract record available.
Inventors
- 👤 Keller Heinz
- 👤 Brodt Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:58
CPC Classifications
C; C23; C23D; C23D5/00; C23D5/10; H; H01; H01B; H01B3/00; H01B3/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A COMPOSITION OF MATTER COMPRISING A DISPERSION CONSISTING ESSENTIALLY OF 200-400 GRAMS/LITER OF AT LEAST ONE THERMALLY DECOMPOSABLE PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM PHOSPHATES, ALIPHATIC SUBSTITUTED AMMONIUM PHOSPHATES HAVING LESS THAN 7 CARBON ATOMS IN ANY SUBSTITUENT GROUP, MONOESTERS, DIESTERS AND MIXED MONO AND DI-ESTERS OF PHOSPHORIC ACID CONTAINING NOT MORE THAN 8 CARBON ATOMS, 10-70 GRAMS/LITER OF A HEAT RESISTANT MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICIC ACID, MICA, HYDRATED ALUMINUM SILICATE CLAYS, MAGNESIUM OXIDE AND ALUMINUM OXIDE, 5-50 GRAMS/ LITER OF AT LEAST ONE THERMALLY DECOMPOSABLE CHROMATE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM CHROMATES AND ALIPHATIC SUBSTITUTED AMMONIUM CHROMATES HAVING LESS THAN 7 CARBON ATOMS IN ANY SUBSTITUENT GROUP, 12-26 GRAMS/LITER OF AN ION SELECTED FROM THE GROUP CONSISTING OF THE CALCIUM ION AND THE BARIUM ION, AND A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER, ALCOHOL AND MIXTURES THEREOF.
Claim 2
Dependent Claim
148 words
A COMPOSITION OF MATTER COMPRISING A DISPERSION CONSISTING ESSENTIALLY OF 200-400 GRAMS/LITER OF AT LEAST ONE THERMALLY DECOMPOSABLE PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM PHOSPHATES, ALIPHATIC SUBSTITUTED AMMONIUM PHOSPHATES HAVING LESS THAN 7 CARBON ATOMS IN ANY SUBSTITUENT GROUP, MONOESTERS, DIESTERS AND MIXED MONO AND DI-ESTERS OF PHOSPHORIC ACID CONTAINING NOT MORE THAN 8 CARBON ATOMS, 10-70 GRAMS/LITER OF A HEAT RESISTANT MATERIAL SELECTED FROM THE GROUP CONSISTING OF SILICIC ACID, MICA, HYDRATED ALUMINUM SILICATE CLAYS, MAGNESIUM OXIDE AND ALUMINUM OXIDE, 5-50 GRAMS/ LITER OF AT LEAST ONE THERMALLY DECOMPOSABLE CHROMATE SELECTED FROM THE GROUP CONSISTING OF AMMONIUM CHROMATES AND ALIPHATIC SUBSTITUTED AMMONIUM CHROMATES HAVING LESS THAN 7 CARBON ATOMS IN ANY SUBSTITUENT GROUP, 12-26 GRAMS/LITER OF AN ION SELECTED FROM THE GROUP CONSISTING OF THE CALCIUM ION AND THE BARIUM ION, AND A SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER, ALCOHOL AND MIXTURES THEREOF.
References Cited (Backward Citations)
US1428087A
Cited
US2337856A
Cited
US2484242A
Cited
US2465247A
Cited
US2492095A
Cited
US2554250A
Cited
US2601212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |