US2449428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die assembly and rubber insert for flanging sheet metal
Assignee: WAYDE TIMMONS
•
Filing: 1944-06-28
•
Granted: 1948-09-14
•
Expires: 1964-06-28
Abstract
No abstract record available.
Inventors
- 👤 Amieal A Timmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:16
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/02; B21D22/00; B21D22/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326852A
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US1492411A
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FR795359A
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US2248786A
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US2190659A
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US2308998A
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US2422883A
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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) | 1951-09-14 | 1952-03-15 | 1952-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-14 | 1956-03-15 | 1956-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-14 | 1960-03-15 | 1960-09-14 | $7700.00 | Window Closed / Lapsed |