US3037878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating and heat treating a metal article and coating composition
Assignee: Arthur D Little Inc
•
Filing: 1957-06-19
•
Granted: 1962-06-05
•
Expires: 1977-06-19
Abstract
No abstract record available.
Inventors
- 👤 Roderick J Cowles
- 👤 Harold F Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:59
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/68; C21D1/70; C03; C03C; C03C4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A NOVEL COMPOSITION SUITABLE FOR DEPOSITION ON A METAL-CONTAINING OBJECT TO PROTECT SAID OBJECT FROM CORROSIVE ATMOSPHERES AT TEMPERATURES UP TO ABOUT 2200* F., CONSISTING ESSENTIALLY OF COMPOUNDS OF SILICON, ALUMINUM AND AN ALKALI SUSPENDED IN A LIQUID DISPERSING MEDIUM REMOVABLE BY VAPORIZATION, SAID COMPOUNDS BEING HEAT-CONVERTIBLE TO THEIR RESPECTIVE OXIDES AND BE-
Claim 2
Dependent Claim
53 words
A NOVEL COMPOSITION SUITABLE FOR DEPOSITION ON A METAL-CONTAINING OBJECT TO PROTECT SAID OBJECT FROM CORROSIVE ATMOSPHERES AT TEMPERATURES UP TO ABOUT 2200* F., CONSISTING ESSENTIALLY OF COMPOUNDS OF SILICON, ALUMINUM AND AN ALKALI SUSPENDED IN A LIQUID DISPERSING MEDIUM REMOVABLE BY VAPORIZATION, SAID COMPOUNDS BEING HEAT-CONVERTIBLE TO THEIR RESPECTIVE OXIDES AND BE-
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) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |