US3075847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold coating
Assignee: Motors Liquidation Co
•
Filing: 1960-11-28
•
Granted: 1963-01-29
•
Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Donald J Henry
- 👤 Jr Neil M Lottridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:23
CPC Classifications
B; B22; B22C; B22C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A FOUNDRY MOLD FOR USE IN PRODUCING A METAL CASTING HAVING AT LEAST ONE THIN SECTION, SAID MOLD BEING FORMED ON FOUNDRY SAND AND HAVING ITS CASTING-DEFINING SURFACES COATED WITH A THIN LAYER OF HEXACHLOROBENZENE.
Claim 2
Dependent Claim
35 words
A FOUNDRY MOLD FOR USE IN PRODUCING A METAL CASTING HAVING AT LEAST ONE THIN SECTION, SAID MOLD BEING FORMED ON FOUNDRY SAND AND HAVING ITS CASTING-DEFINING SURFACES COATED WITH A THIN LAYER OF HEXACHLOROBENZENE.
References Cited (Backward Citations)
US1947926A
Cited
CA572142A
Cited
US2045913A
Cited
US2156789A
Cited
US2623809A
Cited
US2875120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |