US3449818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductor joint
Assignee: Boeing North American Inc
•
Filing: 1967-05-16
•
Granted: 1969-06-17
•
Expires: 1987-05-16
Abstract
No abstract record available.
Inventors
- 👤 Larry L Lowe
- 👤 Gordon G Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:02
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K35/00; B23K35/22; B23K35/24; B23K35/26; B23K35/264; H; H10; H10N; H10N60/00; H10N60/80; Y; Y10; Y10S; Y10S420/00; Y10S420/901; Y10S505/00; Y10S505/825; Y10S505/917; Y10S505/925; Y10S505/927; Y10S505/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1988010A
Cited
US1982645A
Cited
US2283263A
Cited
US2769335A
Cited
US3100330A
Cited
US3184303A
Cited
US3309457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |