Patent US2699693A successfully refreshed from Google Patents.
US2699693A
Expired / Lapsed
US
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Matrix and method of making same
Assignee: AMERICAN SCREW CO
•
Filing: 1953-05-11
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Granted: 1955-01-18
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Stellin Domnic Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:52
CPC Classifications
B; B21; B21K; B21K5/00; B21K5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US628687A
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US1153965A
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US1642696A
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US1933355A
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US2014698A
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US2024650A
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US2066372A
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US2133467A
Cited
US2140775A
Cited
US2325989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |