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US3435180A
Expired / Lapsed
US
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Method of making a molybdenum-tungsten thimble seal
Assignee: General Electric Co
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Filing: 1967-08-03
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Granted: 1969-03-25
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Expires: 1987-08-03
Abstract
No abstract record available.
Inventors
- 👤 Delmar D Kershaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:04
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/02; H; H01; H01J; H01J5/00; H01J5/32; H01J5/40; H01J5/42; H01J2893/00; H01J2893/0033; H01J2893/0034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2504522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |