US2553092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for stretch-bending work in different directions under a predetermined tension
Assignee: HPM Development Corp
•
Filing: 1945-11-21
•
Granted: 1951-05-15
•
Expires: 1965-11-21
Abstract
No abstract record available.
Inventors
- 👤 Leslie S Hubbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:02
CPC Classifications
B; B21; B21D; B21D11/00; B21D11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2326470A
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US2431173A
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US2446089A
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US2437092A
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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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |