Patent US2903761A successfully refreshed from Google Patents.
US2903761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent pre-cast mold
Assignee: Individual
•
Filing: 1956-07-23
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Granted: 1959-09-15
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Expires: 1976-07-23
Abstract
No abstract record available.
Inventors
- 👤 Sirmay Emil Starn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:21
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/06; B22C9/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US426375A
Cited
US722351A
Cited
FR444722A
Cited
US1901427A
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US1855529A
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US2112110A
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US1920020A
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GB522168A
Cited
US2663921A
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FR1015267A
Cited
US2772458A
Cited
US2748435A
Cited
GB725456A
Cited
US2752257A
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US2731690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |