US3338732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porcelain enamel coating
Assignee: Wolverine Porcelain Enameling Co
•
Filing: 1964-10-07
•
Granted: 1967-08-29
•
Expires: 1984-10-07
Abstract
No abstract record available.
Inventors
- 👤 James A Holcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:18
CPC Classifications
C; C03; C03C; C03C8/00; C23; C23D; C23D5/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24421
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN ARTICLE HAVING A ROUGH AGGREGATE FINISH COMPRISING A METALLIC STRUCTURE HAVING THEREON A COMPOSITE COATING COMPRISING: A PORCELAIN ENAMEL GROUND COAT ONSAID SUBJECT; A PORCELAIN ENAMEL COVER COAT OVER SAID GROUND COAT AND HAVING PARTICLES OF INORGANIC MATERIAL FUSED THEREIN, SAID PARTICLES BEING OF A SIZE TO EXTEND OUTWARDLY FROM SAID COVER COAT; AND A PORCELAINENAMEL OVER-SPRAY COAT OVER SAID COVER COAT AND SAID PARTICLES.
Claim 2
Dependent Claim
66 words
AN ARTICLE HAVING A ROUGH AGGREGATE FINISH COMPRISING A METALLIC STRUCTURE HAVING THEREON A COMPOSITE COATING COMPRISING: A PORCELAIN ENAMEL GROUND COAT ONSAID SUBJECT; A PORCELAIN ENAMEL COVER COAT OVER SAID GROUND COAT AND HAVING PARTICLES OF INORGANIC MATERIAL FUSED THEREIN, SAID PARTICLES BEING OF A SIZE TO EXTEND OUTWARDLY FROM SAID COVER COAT; AND A PORCELAINENAMEL OVER-SPRAY COAT OVER SAID COVER COAT AND SAID PARTICLES.
References Cited (Backward Citations)
US1373217A
Cited
US1784392A
Cited
US2337691A
Cited
US2466682A
Cited
US2624823A
Cited
US2708172A
Cited
US2828218A
Cited
US2864721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |