US3489534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight metallic structure
Assignee: General Electric Co
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Filing: 1967-01-03
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Granted: 1970-01-13
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Expires: 1987-01-03
Abstract
No abstract record available.
Inventors
- 👤 Moses A Levinstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:03
CPC Classifications
C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/068; B; B23; B23K; B23K31/00; B23K31/02; C22C47/20; F; F01; F01D; F01D11/00; F01D11/08; F01D11/12; F16; F16L; F16L9/00; F16L9/02; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12424; Y10T428/12444; Y10T428/12493; Y10T428/12729; Y10T428/12736; Y10T428/12771; Y10T428/12861; Y10T428/12931
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |