US2893553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of hollow metallic articles
Assignee: Individual
•
Filing: 1956-10-05
•
Granted: 1959-07-07
•
Expires: 1976-10-05
Abstract
No abstract record available.
Inventors
- 👤 Kreidler Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:37
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14; Y; Y10; Y10S; Y10S55/00; Y10S55/26; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US567606A
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US2024286A
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US1916645A
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US2055534A
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US2225902A
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US2389876A
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US2668345A
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US2675124A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |