US3457619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of perforated metallic bodies
Assignee: General Electric Co
•
Filing: 1967-11-28
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Granted: 1969-07-29
•
Expires: 1987-11-28
Abstract
No abstract record available.
Inventors
- 👤 Paul H Kydd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:47
CPC Classifications
B; B21; B21D; B21D31/00; B21D31/02; F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/186; F05; F05D; F05D2250/00; F05D2250/10; F05D2250/19; F05D2250/191; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339; Y10T29/49341; Y10T29/496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |