US2903923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretch-forging machine
Assignee: Individual
•
Filing: 1956-09-18
•
Granted: 1959-09-15
•
Expires: 1976-09-18
Abstract
No abstract record available.
Inventors
- 👤 Kralowetz Bruno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:36
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US952298A
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FR527923A
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US1617890A
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US1819376A
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US1841920A
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US1894800A
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US2058556A
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US2410742A
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US2562643A
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US2656744A
Cited
GB688587A
Cited
US2793548A
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 |