US2614515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hood forming machine
Assignee: Alcoa Corp
•
Filing: 1951-06-22
•
Granted: 1952-10-21
•
Expires: 1971-06-22
Abstract
No abstract record available.
Inventors
- 👤 Edward M Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:34
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D51/446; B21D43/00; B21D43/02; B21D43/04; B21D43/06; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/463; Y10T83/4635
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US553604A
Cited
US1626977A
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US2151028A
Cited
US2251433A
Cited
US2393683A
Cited
US2537540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |