US2731713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a focused multicell
Assignee: General Electric Co
•
Filing: 1951-11-23
•
Granted: 1956-01-24
•
Expires: 1971-11-23
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:06
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; H; H05; H05B; H05B3/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/4981
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) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |