US2743491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundry equipment
Assignee: Individual
•
Filing: 1953-10-20
•
Granted: 1956-05-01
•
Expires: 1973-10-20
Abstract
No abstract record available.
Inventors
- 👤 Berry Otto Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:52
CPC Classifications
B; B22; B22D; B22D47/00; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US942073A
Cited
US1515483A
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US1839106A
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US1913945A
Cited
US1974144A
Cited
US2270822A
Cited
US2535335A
Cited
US2522031A
Cited
US2676368A
Cited
US2588898A
Cited
US2581418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |