US2945272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for forming reinforced thin-walled shell molds
Assignee: Motors Liquidation Co
•
Filing: 1956-04-20
•
Granted: 1960-07-19
•
Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Alfred L Boegehold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:52
CPC Classifications
B; B22; B22C; B22C23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A METHOD OF FORMING A REINFORCED SHELL MOLD WHICH COMPRISES APPLYING TO A HEATED METAL PATTERN A MIXTURE
Claim 2
Independent Claim
18 words
A METHOD OF FORMING A REINFORCED SHELL MOLD WHICH COMPRISES APPLYING TO A HEATED METAL PATTERN A MIXTURE
References Cited (Backward Citations)
US805144A
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US1492353A
Cited
US1533220A
Cited
US1695925A
Cited
DE860241C
Cited
US2705822A
Cited
US2759229A
Cited
US2720687A
Cited
US2721363A
Cited
US2873493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |