US3526953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making lightweight metallic structure
Assignee: General Electric Co
•
Filing: 1969-06-05
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Granted: 1970-09-08
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Expires: 1989-06-05
Abstract
No abstract record available.
Inventors
- 👤 Moses A Levinstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:28
CPC Classifications
C; C22; C22C; C22C47/00; C22C47/02; C22C47/06; C22C47/062; C22C47/068; B; B23; B23K; B23K31/00; B23K31/02; F; F01; F01D; F01D11/00; F01D11/08; F01D11/12; F16; F16L; F16L9/00; F16L9/02; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1618142A
Cited
US2619438A
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US2974404A
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US2930117A
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US3037275A
Cited
US3091026A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |