Patent US3486219A successfully refreshed from Google Patents.
US3486219A
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Method of making tubes
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1966-02-28
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Granted: 1969-12-30
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Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jared Marshall Davies
- 👤 Colin Steer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/06; B; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/0807; C; C21; C21D; C21D8/00; C21D8/10; C21D9/00; C21D9/50; C22; C22F; C22F1/00; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1996775A
Cited
US2712249A
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US2693632A
Cited
US2883744A
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US2977914A
Cited
GB946407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |