US2732897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
musser
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:32
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/007; B21D28/24; B21D28/28; Y; Y10; Y10T; Y10T83/00; Y10T83/364; Y10T83/384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1588200A
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US2233930A
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US2315496A
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US2276259A
Cited
US2204273A
Cited
US2280204A
Cited
US2362829A
Cited
US2326536A
Cited
USRE23211E
Cited
US2405714A
Cited
US2395123A
Cited
US2422900A
Cited
US2467034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |