Patent US2576307A successfully refreshed from Google Patents.
US2576307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition and method of making
Assignee: Industrial Metal Protectives Inc
•
Filing: 1948-08-10
•
Granted: 1951-11-27
•
Expires: 1968-08-10
Abstract
No abstract record available.
Inventors
- 👤 Nordon Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:51
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A LIQUID COATING COMPOSITION COMPRISING A DISPERSION OF ZINC DUST IN AN AQUEOUS SOLUTION OF ALKALI METAL SILICATE HAVING A ROTIO OF ALKALI METAL OXIDE TO SILICA DEFINED IN MOLES OF 1:2.4 TO 1:3.0, SAID ZINC DUST BEING PROVIDED WITH A FILM OR COATING OF AT LEAST ONE OF THE COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AMMONIUM SUPLHIDE AND AMMONIUM CARBONATE, SAID FILM OR COATING BEING EFFECTIVE TO PREVENT FROTHING AND TO INCREASE THE LIFE OF THE MIXTURE.
References Cited (Backward Citations)
GB190706755A
Cited
US1110808A
Cited
US1452445A
Cited
AU1513128A
Cited
US2462763A
Cited
US2263070A
Cited
US2440969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |