US2955341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting hollow receptacles
Assignee: Individual
•
Filing: 1957-04-05
•
Granted: 1960-10-11
•
Expires: 1977-04-05
Abstract
No abstract record available.
Inventors
- 👤 James A Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:14
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/16; B28B7/168
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US862123A
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US1050816A
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US1948931A
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US1983757A
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US2068302A
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US2086154A
Cited
US2485850A
Cited
US2539741A
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US2510810A
Cited
US2749303A
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US2828526A
Cited
US2831231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |