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US2716482A
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US
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Bull-blocks
Assignee: LEWIN MATHES Co
•
Filing: 1952-01-14
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Granted: 1955-08-30
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Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Edward F Schweich
- 👤 Sanford A Silverstein
- 👤 Joseph W Goldenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:13
CPC Classifications
B; B21; B21C; B21C1/00; B21C1/02; Y; Y10; Y10S; Y10S72/00; Y10S72/701
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US547231A
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US604769A
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US743136A
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US880178A
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US904836A
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US1578351A
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US1862267A
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US2420050A
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US2584099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-29 | 1959-02-28 | 1959-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-29 | 1963-02-28 | 1963-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-29 | 1967-02-28 | 1967-08-30 | $7700.00 | Window Closed / Lapsed |