US2326283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing seam caps
Assignee: Standard Railway Equipment Manufacturing Co
•
Filing: 1941-03-24
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Granted: 1943-08-10
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Expires: 1961-03-24
Abstract
No abstract record available.
Inventors
- 👤 Bonsall Charles David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:13
CPC Classifications
B; B21; B21D; B21D53/00; B61; B61D; B61D17/00; B61D17/04; Y; Y02; Y02T; Y02T30/00; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-08-09 | 1947-02-08 | 1947-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-08-09 | 1951-02-08 | 1951-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-08-09 | 1955-02-08 | 1955-08-10 | $7700.00 | Window Closed / Lapsed |