US2843175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device with collapsible arbor for forming partially formed part into boxlike article
Assignee: AT&T Inc
•
Filing: 1955-02-24
•
Granted: 1958-07-15
•
Expires: 1975-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert H Black
- 👤 Madsen Claude
- 👤 Elmer C Neuhaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:18
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US505541A
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US779096A
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US1129625A
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US1443737A
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US1365031A
Cited
US1818332A
Cited
US1948918A
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US2352095A
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US2442908A
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US2681027A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |