US2937553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cutting blanks and rotating alternate pieces into feeding alignment
Assignee: AO Smith Corp
•
Filing: 1955-09-12
•
Granted: 1960-05-24
•
Expires: 1975-09-12
Abstract
No abstract record available.
Inventors
- 👤 Donald W Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:20
CPC Classifications
B; B23; B23D; B23D33/00; B23D33/02; B21; B21D; B21D43/00; B21D43/28; B21D43/287; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0448; Y10T83/202; Y10T83/2027; Y10T83/2092; Y10T83/22; Y10T83/2205; Y10T83/2207
Claims Analysis
Total Claims: 0
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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) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |