US3549416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming superconductive materials
Assignee: Gulf Energy and Environmental Systems Inc
•
Filing: 1965-06-01
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Granted: 1970-12-22
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Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 Bjorn S Rump
- 👤 Robert H Hammond
- 👤 Charles H Meyer Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:19
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H01; H01B; H01B1/00; H10N60/0184; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/815; Y10S505/818; Y10S505/819
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |